Search is broken when same strings of text overlap

[osowiecki]

 * Xed version (xed --version) 3.6.6
 * Distribution -Linuxmint
Description:	Linux Mint 22
Release:	22
Codename:	wilma

Issue

Search for "AGTCCCTCAAG" in XED. It will fail to find "AGTCCCTCAAG" in "AGTCCCTCAAGTCCCTCAAG". This is also broken in latest Firefox...

Steps to reproduce

Substring: 'AGTCCCTCAAG (forward) (length: 11)'
Occurs 2 times forward in the target sequence
Forward occurrence in reference sequence: 1
Reversed occurrence in reference sequence: 0
Total occurrences in reference sequence: 1
Unmasked target sequence: AGTCCCTCAAGTCCCTCAAGCCGCCACCGCCGCC
Unmasked target sequence: AGTCCCTCA
AGTCCCTCAAGCCGCCACCGCCGCC
Masked target sequence: ***********TCCCTCAAGCCGCCACCGCCGCC
Unmasked reference sequence: AGTCCCTCAAGT
Masked reference sequence: ***********T

Expected behaviour

Find "AGTCCCTCAAG" twice

Other information