Better, but.....

[TheCADWhisperer]

Sketching behavior is better than previous release, but still loosing existing constraints on edit....

[TheCADWhisperer]

Hmm. I did some more experimenting and found additional issue.

If I do not place the dimensions when created and instead add them between lines (not endpoints) after accepting the rectangle - both construction lines lose virtual corner constraints.

[jeff_strater]

Yeah, that is still a problem.  We specifically fixed the "dimension/sketch fillet" problem:

but, not the more general "sketch fillet preserving all constraints" problem.  This is one of those cases.  It's on the list...

Jeff