[Bug 108282] Mesa 18.2.x makes glxinfo show problems, 18.1.9 is OK [bisected]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108282

--- Comment #30 from brodo at o2.pl ---
Although I confirmed proper behaviour of VariCAD 2.09, but there are some
graphical weird phantoms during rotating or moving 3D view position.

Downgrading back to mesa 18.1.9 eleminates this problem.

So not all is resolved, unfortunately.
How can I track/debug these phantoms to get some useful info ?

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