Issue with latest QScintilla

[Detlev Offenbach]

Hi Phil,

I think there is an issue with latest QScintilla. Whenever eric tries to 
show a completion list it crashes with a segmentation fault when run 
under Wayland (tested on Ubuntu 22.04 and reported for Mint 21). Another 
effect I observed under Wayland is, that when a shown autocompletion 
list is to be updated, the updated one is not shown (or is 
hidden/invisible). I could not generate this erroneous behavior on 
Ubuntu 20.04 Wayland.

The faulty behavior could also be seen in the Linux environment of 
ChromeOS, which has a yet another Wayland implementation.

Regards,
Detlev

PS: Unfortunately I am not able to present a minimal example for this issue.

-- 
Detlev Offenbach
detlev at die-offenbachs.de