Thunar daemon / GtkRecentManager creates orphane recently-used.xbel files on shutdown

Version information

thunar/testing,now 4.20.2-1 amd64

Steps to reproduce

I'm using custom script to monitor ~/.local/share/recently-used.xbel.XXXXXX files creation and moving (inotify + lsof). And on system shutdown / user logout I can easily reproduce creation of such file without merging it with primary recently-used.xbel.

Current behavior

Temporary file creation is needed for GtkRecentManager to work. I think action to update recent history is mis-triggered on daemon shutdown. I.e. we're getting race somewhere:

• Thunar starts termination after SIGTERM
• Thunar asks GtkRecentManager to update history
• Thunar actually terminates, leaving recent_manager in half-baked state

But all of this is just my guess.

Expected outcome

No spam with temporary files in ~/.local/share