What does retry-limit-in-match mean?

[fstab]

I'm getting an error retry-limit-in-match over, and I don't understand what that means. I see from the release notes that this was enabled with rel 6.8.0, and I found an API function to configure it, but I didn't find documentation on what it does.

Could you give me a short explanation or a link to documentation on this?

[kkos]

In the matching at one position in the search range of the string, count the number of times to move from the failure of the match to another choice.
An error will occur if the number exceeds the limit.

Among the "another choice from failure" are:

• Alternation "|"
• Quantifier "a*" etc..
• Using "another choice" internally:
  \X (== (?>\O(?:\Y\O)*))
  Absent functions
  Negative look-ahead
  Negatvie look-behind

[fstab]

Thanks!