fixup a6b5394086260c262e393dd113057916fd14134b: emit undo tokens for insert_len

* Turns out it is impossible - or at least very tricky - to avoid undo token emission
  for insert_len.
  I therefore opt for stability rather than saving memory.
* The old workaround introduced in a6b5394086260c262e393dd113057916fd14134b would actually
  fail if you do not rub out the string argument completely after interruption. I.e.
  You type <Ihello^J$>, interrupt - insert_len may be != 0 at this point - and _partially_
  rubout the insert-command and continue typing.
  This could still crash the editor.

0 files changed, 0 insertions, 0 deletions