Issues with negative numbering (e.g. #-1) are shown and sorted incorrectly

[Vermoot]

Steps to reproduce

I have issues in my Komga library that are tagged (with ComicInfo.xml metadata) as issue #-1 (see here), and they appear correctly as #-1 in Komga but not in Mihon, where they appear (and are sorted) as #1

See screenshots below:

Komga:

Mihon:

Expected behavior

The issue list should be

#-1
#0
#1
#2

Actual behavior

The issue list is

#0
#1
#1 (Which is actually #-1)
#2

Crash logs

No response

Mihon version

0.17.1

Android version

Android 15

Device

Poco Pad

Other details

No response

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• I have written a short but informative title.
• I have gone through the FAQ and troubleshooting guide.
• I have updated the app to version 0.17.1.
• I have updated all installed extensions.
• I will fill out all of the requested information in this form.

[Animeboynz]

Have you already tried all the chapter sort options?

[Vermoot]

Using ⬆️ By source does actually show them in the right order, though issue -1 is still listed as 1.
Sorting by chapter number should work correctly though, since the metadata is correctly set as issue -1.
I guess Mihon just doesn't parse the - as it should?