Search: "Include child tags" option doesn't work when excluding tags

[Susko3]

Website (required)

VocaDB

Describe the bug (required)

Enabling Include child tags doesn't do anything when a tag is added in the Exclude filtering mode. There should be an option to include child tags in the filter when using exclude mode. Or it should be the default. See 'Expected behavior'.

To Reproduce (optional)

1. Go to the search page for songs
2. Show More filters
3. Add pop tag
4. Exclude it
5. Enable Include child tags
6. Set Artist filter to SOLARIA

You're now at https://vocadb.net/Search?searchType=Song&artistId%5B0%5D=76317&artistParticipationStatus=Everything&childTags=true&childVoicebanks=false&draftsOnly=false&filter=&maxLength=0&minLength=0&onlyRatedSongs=false&onlyWithPVs=false&page=1&pageSize=10&songType=Unspecified&sort=RatingScore&unifyEntryTypesAndTags=false&viewMode=Details&excludedTags%5B0%5D=341

Actual behavior

Songs that are tagged by children of the pop tag appear in the results.

Example: Dawn, which is tagged with electropop, appears in the results. And electropop → synth-pop → pop.

Expected behavior

Songs that are tagged by children of the pop tag shouldn't appear in the results. Those tags are included in the exclude filter.

Additional context (optional)

Add any other context about the problem here.

Checklist (required)

Fill out the checklist. Use strikethroughs or leave fields empty if you don't know or are unable to check/test.

• Searched VocaDB/vocadb for duplicate issues.
  • Search: Include more than 3 levels of "child tags" #1728 doesn't apply, as the example song/tag is nested only 2 levels deep
• Tested on the beta site.
• Tested on different browsers (e.g. Firefox, Chrome, Safari, Edge).
• Checked in private mode.
• Cleared browser cache and cookies.
• Checked the DevTools console.
• Checked the syslog (mods+ only).