[BUG][CRASH] Using paste all before

[trink]

Version of Kakoune

Kakoune 2024.05.18-278-g92260722

Reproducer

Use this file:

a b
    c

1. % # select all
2. <a-J> # join selected lines and select spaces inserted in place of line breaks
3. u # undo
4. d # delete
5. <a-P> # paste all before (debug will assert here)

In the release build different operations after the paste will generally cause a malloc error
6. <a-l> # select to line end
7. <a-(> # rotate content selection backward (the bad_alloc is thrown here)

Outcome

Debug

Fatal error: assert failed "change.begin >= cur_pos" at src/changes.cc:7

Release

uncaught exception (St9bad_alloc):
std::bad_alloc

Expectations

No response

Additional information

No response