Dongxu Li

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This is a good point: painter should be relying on the native, _i.e._ the QPainter, as much as possible for performance and avoiding issues like #1493. Similar problem also exists...

I added a similar quick fix for #1616 : 4657adbe2001c2ee9a819e37373a7b015eeb9a25 . The fix has the same drawback of leaving the pasted insert at rotation angle 0. I am still searching...

This appears to be bad to me. I will try this one.

Commit 6349126 solves this issue using a simpler change: reject a candidate circle center, if the center is on a selected circle/line. If we have numeric stability issues, we may...

center of circumcircle is not relevant, and cannot be applied to 4 points or more in general. centroid of a polygon (or any other 2D solid areas) is the [center...

we should keep releasing 2.2.x maintenance releases, unless our version 3 branch picks up momentum.

Not needed with 2.2.1 and 2.2.2 releases planned

yes, we got some serious regression a good fix is still needed Could you test the quick fix in the latest master branch?