zypper not always showing all posttrans messages

[jengelh]

OS: Tumbleweed 20250204, libzypp-17.35.19-1.1.x86_64, zypper-1.14.81-1.1.x86_64, systemd-257.2-2.1.x86_64 (important), man-2.13.0-2.2.x86_64 (important), glibc-2.40-3.1.x86_64 (important)

rpm 4.20 has gained new deprecation warnings, but they do not always show up when rpm runs on behalf of zypper.

# zypper dup
[…]
Choose from above solutions by number or skip, retry or cancel [1/2/s/r/c/d/?] (c): 1

Resolving dependencies...
Computing distribution upgrade...

The following 146 packages are going to be upgraded:[...]
Checking for file conflicts: ....................................................................................[done]
install-info: No such file or directory for /usr/share/info/libffi-5.info.gz
[…]
(170/173) Installing: screen-4.9.1-5.3.x86_64 ...................................................................[done]
(171/173) Installing: jeng-base-packages-50-1.4.noarch ..........................................................[done]
(172/173) Installing: jeng-workstation-packages-50-1.4.noarch ...................................................[done]
(173/173) Installing: jeng-devel-packages-50-1.4.noarch .........................................................[done]
%posttrans(screen-4.9.1-5.3.x86_64) script output:
<cyan>warning: posix.fork(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
<cyan>warning: posix.wait(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
<cyan>warning: posix.exec(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
[…]
Running post-transaction scripts ................................................................................[done]
There are running programs which still use files and libraries deleted or updated by recent upgrades. They should be restarted to benefit from the latest updates. Run 'zypper ps -s' to list these programs.

# zypper rm wtmpdb
Reading installed packages...
Resolving package dependencies...

The following package is going to be REMOVED:
  wtmpdb

1 package to remove.

Package install size change:
              |         0 B    required by packages that will be installed
   -90.2 KiB  |  -   90.2 KiB  released by packages that will be removed

Backend:  classic_rpmtrans
Continue? [y/n/v/...? shows all options] (y):
<cyan>Removed '/etc/systemd/system/timers.target.wants/wtmpdb-rotate.timer'.
<cyan>Removed '/etc/systemd/system/default.target.wants/wtmpdb-update-boot.service'.
<cyan>Removed '/etc/systemd/system/sockets.target.wants/wtmpdbd.socket'.
(1/1) Removing: wtmpdb-0.71.0+git20250203.86b8442-1.1.x86_64 ....................................................[done]
Running post-transaction scripts ................................................................................[done]
There are running programs which still use files and libraries deleted or updated by recent upgrades. They should be restarted to benefit from the latest updates. Run 'zypper ps -s' to list these programs.

# zypper in wtmpdb
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following NEW package is going to be installed:
  wtmpdb

1 new package to install.

Package download size:    45.4 KiB

Package install size change:
              |      90.2 KiB  required by packages that will be installed
    90.2 KiB  |  -      0 B    released by packages that will be removed

Backend:  classic_rpmtrans
Continue? [y/n/v/...? shows all options] (y):
Retrieving: wtmpdb-0.71.0+git20250203.86b8442-1.1.x86_64 (base)                                    (1/1),  45.4 KiB
Retrieving: wtmpdb-0.71.0+git20250203.86b8442-1.1.x86_64.rpm ....................................................[done]

Checking for file conflicts: ....................................................................................[done]
<cyan>Created symlink '/etc/systemd/system/default.target.wants/wtmpdb-update-boot.service' -> '/usr/lib/systemd/system/wtmpdb-update-boot.service'.
<cyan>Created symlink '/etc/systemd/system/timers.target.wants/wtmpdb-rotate.timer' -> '/usr/lib/systemd/system/wtmpdb-rotate.timer'.
<cyan>Created symlink '/etc/systemd/system/sockets.target.wants/wtmpdbd.socket' -> '/usr/lib/systemd/system/wtmpdbd.socket'.
(1/1) Installing: wtmpdb-0.71.0+git20250203.86b8442-1.1.x86_64 ..................................................[done]
Running post-transaction scripts ................................................................................[done]

# rpm -e wtmpdb
Removed '/etc/systemd/system/timers.target.wants/wtmpdb-rotate.timer'.
Removed '/etc/systemd/system/default.target.wants/wtmpdb-update-boot.service'.
Removed '/etc/systemd/system/sockets.target.wants/wtmpdbd.socket'.
warning: posix.fork(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.wait(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.exec(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.fork(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.wait(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.exec(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.fork(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.wait(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead
warning: posix.exec(): .fork(), .exec(), .wait() and .redirect2null() are deprecated, use rpm.spawn() or rpm.execute() instead