Ali Mohammad Pur dd82c2e9b4 LibRegex: Correctly handle failing in the middle of explicit repeats ...

- Make sure that all the Repeat ops are reset (otherwise the operation
  would not be correct when going over the Repeat op a second time)
- Make sure that all matches that are allowed to fail are backed by a
  fork, otherwise the last failing fork would not have anywhere to
  return to.
Fixes #9707.

2021-09-01 13:36:53 +02:00

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