Created attachment 171329 [details]
screenshot taken in the split second before resutls are updated

SUMMARY

Hi!

This bug affects both Krunner and the Launcher, and I have observed this in both Plasma 5 and 6.

If I open my launcher menu (hitting Meta) and then type "fire", eventually firefox is the top option, since that is the last app I used that starts with fire. So far so good.

If I type "fire" and then hit enter immediately, sometimes the search is not done yet. After typing F and I, "Files" comes into view. Even after I type the R and E, which should invalidate the "Files" search result. But instead, Files is opened, even though my search query "fire" cannot possibly have this result.

An even better example for this is discord and discover.

STEPS TO REPRODUCE
1. Have discord and discover installed (or any other apps that start with the same letter(s))
2. Open Launcher or Krunner
3. quickly type discord or discover and hit enter immediately

OBSERVED RESULT

depending on what result comes first, either of the two may result in the wrong app being opened.

EXPECTED RESULT

Search should be deterministic - meaning that no matter how long I wait, the same result should be the top result.

There are rules for ordering depending on which app was most recently used (I think) and that is fine - but at the very least, an impossible search result should never ever be opened.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Tried in Fedora 39 and Bazzite 3.5
(available in About System)
KDE Plasma Version: tried in 5.27 and 6.1
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION