Bug 2309284

Description of problem:
In our upstream test suite one of our test started recently failing on Fedora Rawhide. After some debugging it looks like screen 5.0.0 doesn't log broadcast/wall messages anymore in other screens, and when such message is issued it garbles the current screen. Downgrading to screen-4.9.1-1.fc40.x86_64 makes everything work as expected.

Version-Release number of selected component (if applicable):
screen-5.0.0-1.fc42.x86_64

How reproducible:
always

Steps to Reproduce:
# screen -L -Logfile screen.log
## Create a second screen (C-a c) and issue `shutdown -r` in the newly created screen

Actual results:
The broadcast message gets overlaid on top of the current screen, making the text garbled. There's no broadcast message in the first screen.

Output from the terminal:
```
[root@vm-10-0-187-183 ~]# shutdown -r

[root@vm-10-0-187-183 ~]# t.redhat.com on pts/2 (Mon 2024-09-02 14:14:42 EDT):

The system will reboot at Mon 2024-09-02 14:15:42 EDT!

Reboot scheduled for Mon 2024-09-02 14:15:42 EDT, use 'shutdown -c' to cancel.
```

Output from the screen log file:
```
# cat screen.log 
root@vm-10-0-187-183:~[root@vm-10-0-187-183 ~]# root@vm-10-0-187-183:~[root@vm-10-0-187-183 ~]# root@vm-10-0-187-183:~[root@vm-10-0-187-183 ~]# shutdown -r
Reboot scheduled for Mon 2024-09-02 14:17:13 EDT, use 'shutdown -c' to cancel.
root@vm-10-0-187-183:~[root@vm-10-0-187-183 ~]# 
exit

exit

exit
```

Expected results:
There is no broadcast message in the second screen, but there is one the first screen (tested with screen-4.9.1-1.fc40.x86_64).

Output from the terminal:
```
[root@vm-10-0-186-235 ~]# shutdown -r
Reboot scheduled for Mon 2024-09-02 14:20:07 EDT, use 'shutdown -c' to cancel.
[root@vm-10-0-186-235 ~]# 
```

Output from the screen log file:
```
# cat screen.log 
root@vm-10-0-186-235:~[root@vm-10-0-186-235 ~]# root@vm-10-0-186-235:~[root@vm-10-0-186-235 ~]# shutdown -r

Broadcast message from root.redhat.com on pts/2 (Mon 2024-09-02 14:19:07 EDT):

The system will reboot at Mon 2024-09-02 14:20:07 EDT!

Reboot scheduled for Mon 2024-09-02 14:20:07 EDT, use 'shutdown -c' to cancel.
root@vm-10-0-186-235:~[root@vm-10-0-186-235 ~]# 
exit

exit
```