Description of problem:
When I keep preediting on apps and the screen is locked by idle, IBus stop working after unlocking.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Install Workstation from Live
2.Setup with ja
3.Open LibreOffice Writer
4.Type something on preedit and wait for locking the screen
5.Unlock the screen
Unable to input through IBus on apps
Able to input through IBus
IBus get back after changing the focus for example.
I cannot reproduce this issue while I set the idling time is 1 minute.
I can reproduce this now, thank you for the report.
I seem able to reproduce this, even without any pre-edit (nor even the IME turned on),
using gnome-terminal for example.
As reported, switching application focus brings back the Input Source indicator and input.
I used Fedora-Workstation-Live-x86_64-36_Beta-1.1.iso to test.
The IMEs also disappear from the Input Source menu.
Discussed during the 2022-04-11 blocker review meeting: 
The decision to classify this bug as an AcceptedFreezeException was made:
"It is a noticeable issue that cannot be fixed with an update."
It looks to me that somehow the disabling of IM state on the lockscreen password
is persisting back into the user session or something?
I opened https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5346