bug in InducedPcgsByPcSequence #6782

The following triggers a "no method found" error in GAP. This causes the bug reported in
bh11/crisp#16 (comment).

gap-4.16.1 % ./gap -r -A
o G GAP 4.16.1 of 2026-08-23
o o A https://www.gap-system.org
o P Architecture: x86_64-apple-darwin24-default64-kv11
Configuration: gmp 6.3.0, GASMAN, readline
Loading the library and packages ...
Packages: GAPDoc 1.6.10, PrimGrp 4.0.3, SmallGrp 1.7.0, TransGrp 3.6.5
Try '??help' for help. See also '?copyright', '?cite' and '?authors'
gap> s:=Socle(SymmetricGroup(4));
Group([ (1,4)(2,3), (1,2)(3,4) ])
gap> Pcgs(s);
Pcgs([ (1,4)(2,3), (1,2)(3,4) ])
gap> InducedPcgsByPcSequence(Pcgs(s), [ (1,4)(2,3), (1,2)(3,4) ]);
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `EANormalSeriesByPcgs' on 1 arguments
Stack trace:
*[1] EANormalSeriesByPcgs( pcgs )
@ /Users/burkhard/GAP/gap-4.16.1/lib/pcgsperm.gi:1122
[2] TailOfPcgsPermGroup( pcgs, ran[1] )
@ /Users/burkhard/GAP/gap-4.16.1/lib/pcgsperm.gi:1153
[3] InducedPcgsByPcSequenceNC( pcgs, pcs )
@ /Users/burkhard/GAP/gap-4.16.1/lib/pcgsind.gi:282
<function "InducedPcgsByPcSequence method">( )
called from read-eval loop at stdin:3
type 'quit;' to quit to outer loop
brk>