Crash after trying to paste the mirror of a construction

[someSven]

System information

• **SolveSpace version:3.0~3e3ccdca
• **Operating system:Raspian

Expected behavior

Pasting the mirror of a construction. Only some lines, including a bezier line, and some constraints.

Actual behavior

Programms crashed and window disappeared.

Additional information

Shell:
Generate::ALL (for bounding box) took 90 ms
Generate::ALL took 91 ms
File ./src/dsc.h, line 479, function FindById:
Assertion failed: t != NULL.
Message: Cannot find handle.
Aborted

thighV2_front-outer.slvs.zip

[phkahler]

It would be helpful to know which group and which entites you tried to paste so we can reproduce the crash. I was able to copy and paste-transformed the entire g002 sketch with the "flipped" checkbox so it was reversed. Not sure copy paste is really a thing in a 3D group, but if that's what you tried to do it should at least not crash...

[ruevs]

I can not cause it to crash either. I even did Sketch | In Workplane in group g003-revolve, Ctrl-A, Ctrl-C, Ctrl-T and it still works (does stupid things of course, but does not crash).

[someSven]

Ah, I cut it, instead of copying. Because I didn't need the old construction, just wanted it to be on the other side. With copy it works, even into a new workplane.

[ruevs]

Aha with cut -> paste transformed it crashes!
Ufff this is tricky...

solvespace/src/clipboard.cpp

Line 171 in 11a8a0a

Request *r = SK.GetRequest(hr);

[vespakoen]

That looks tricky indeed, maybe a good solution is to disable paste transformed when the selection was cut and add a "Transform" option that works like paste transformed but does a copy itself and deletes the original selection when it's done.

[phkahler]

Related to #808.