Alphanumeric track number reading is slightly broken

[kode54]

Describe the bug Since updating, I now experience tracks that have empty totaltracks and/or disc number and/or total discs fields reading those fields as -1 instead of empty string, so now all my tracks without disc numbers display -1.05 etc.

To Reproduce

1. Install 22c416ee from source using AUR package.
2. Load some tracks with no total tracks and no disc number info.

Expected behaviour Empty track/disc number/total fields should remain as empty string.

Screenshots

System:

• OS: Arch Linux
• fooyin version: 22c416ee (r2772.22c416ee-1)