[FIX] Index Finder: added a missing termination condition in backtracking
[FIX] Index Finder: added a missing termination condition in backtracking

xenigmax/seqan,xenigmax/seqan,limeng12/seqan,budach/seqan,bayolau/seqan,limeng12/seqan,budach/seqan,ktrappe/seqan,catkira/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,xenigmax/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,bayolau/seqan,bestrauc/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,JohnReid/seqan,hannespetur/SeqAnHTS,catkira/seqan,xp3i4/seqan,ktrappe/seqan,bestrauc/seqan,JohnReid/seqan,hannespetur/SeqAnHTS,catkira/seqan,limeng12/seqan,budach/seqan,PF2-pasteur-fr/seqan,budach/seqan,PF2-pasteur-fr/seqan,xenigmax/seqan,budach/seqan,catkira/seqan,bayolau/seqan,bestrauc/seqan,ktrappe/seqan,bestrauc/seqan,h-2/seqan,xp3i4/seqan,JohnReid/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,h-2/seqan,ktrappe/seqan,JohnReid/seqan,h-2/seqan,bayolau/seqan,catkira/seqan,bestrauc/seqan,hannespetur/SeqAnHTS,h-2/seqan,catkira/seqan,catkira/seqan,h-2/seqan,budach/seqan,PF2-pasteur-fr/seqan,h-2/seqan,JohnReid/seqan,budach/seqan,bayolau/seqan,bayolau/seqan,PF2-pasteur-fr/seqan,bestrauc/seqan,hannespetur/SeqAnHTS,xp3i4/seqan,limeng12/seqan,ktrappe/seqan,budach/seqan,xenigmax/seqan,xenigmax/seqan,h-2/seqan,JohnReid/seqan,xp3i4/seqan,hannespetur/SeqAnHTS,bestrauc/seqan,budach/seqan,ktrappe/seqan,h-2/seqan,bestrauc/seqan,ktrappe/seqan,bayolau/seqan,PF2-pasteur-fr/seqan,PF2-pasteur-fr/seqan,hannespetur/SeqAnHTS,JohnReid/seqan,bayolau/seqan,limeng12/seqan,catkira/seqan,JohnReid/seqan,limeng12/seqan,xp3i4/seqan,xp3i4/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,ktrappe/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,h-2/seqan,xp3i4/seqan,bayolau/seqan,JohnReid/seqan,catkira/seqan,limeng12/seqan