segmentation fault on loading xml result file a second time in the same 12masschroq instance

Bug report

after loading some xml tandem result file on to i2masschroq, if you try to reload some xml tandem result file iémasschroq crash with segmentation fault

Version of X!TandemPipeline

0.6.3

Error message

no error, only a segmantion fault on terminal

File used

/gorgone/pappso/moulon/users/thierry/20230724_vidovic_38_ziptip/QC/XML/no_semi

## Steps to reproduce load sample with i2masschroq load identitifation results option after loading end reload same samples

What is the expected correct behavior?

do not crash

Optional

Relevant logs and/or screenshots

(Paste any relevant logs - please use code blocks (```) to format console output, logs, and code as it's very hard to read otherwise.)

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)