Describe the bug
The test tstReplaceLast in lang::rascal::tests::basic::Strings1 failed randomly in CI with the input
Actual parameters:
str =>" \tkH"
str =>" \t \t \t"
str =>"361829"
Reducing this a bit, it suffices to call tstReplaceLast("abc", "abab", "_"). The value of the last parameter is irrelevant, as long as it is non-empty. It appears to be crucial that the second argument is a repetition (>1) of any prefix (of length >1) of the first string. Probably to be fixed in isOverlapping.
Desktop (please complete the following information):