@spb
Thanks for reporting this should be fixed in 7.9.
While I have an actual user of this function I’d like to ask you some questions.
What are you using this for?
I understand the basic desire for a quick method to simplify a curve by removing unneeded knots. But why pick on knots of a certain multiplicity?
and why only consider removing these knots entirely instead of just reducing the multiplicity?
Do you already know something about the curves you’re applying this to? For instance they have unneeded fully multiple knots?