Error when testing permutation groups for conjugacy

[hulpke]

The file
conjbug.txt
defines three permutation groups a, b, and c of degree 448. Then

gap> RepresentativeAction(a,b,c);
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `^' on 2 arguments called from
OnTuples( sub, subs.reps[o]
 ) at /Volumes/BigDisk/oldgap/gap4r8/lib/stbcbckt.gi:724 called from

Clearly this should work.
I have been able to trace this back to GAP 4.7, but did not have an older runneable version to test on.

[ChrisJefferson]

Just to say, I had a look at this -- I couldn't figure out what the problem was. I suspect the problem is the search should just be "failing" and backtracking in the failing branch, but the data structures are very weird, and not documented.

I have a bunch of deadlines in the next 2 weeks. If no-one else has figured it out before then, I'll try having a dive into it.

[fingolfin]

This bug is already present in GAP 4.4.12. As such, I removed the GAP 4.10.2 milestone. I also removed the backport-to-4.10 label, which only applies to pull requests.