onDisable not always called for SearchProvider

Unity: Search

6.2.X

6.1.X

6.0.X

There are no clear repro steps unfortunately or I wasn't able to find the proper pattern.
Ensure you have a SearchPRovider with an onEnable and onDisable functors and that those functors print something when they are triggered
Open the search window see that onEnable is called. Closed the search window and see that onDisable is called.
It seems that if you add queryblocks, remove frocus from the searchfield (or the window?) and close it, sometimes onDisable is not called.
It seems it happens more often when you add a block and close the window.