Repo indexer multi-term search is broken

[guillep2k]

• Gitea version (or commit ref): 1.9
• Git version: any
• Operating system: any
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Description

When searching for multiple terms in a repository, the indexer can only 'see' the combinations where the terms first occur in a document. For example, consider the following text:

I like apples.
Hey, apples are nice.

• Searching for any I, like, apples, hey, are or nice, Gitea returns the document correctly.
• Searching for I like, like apples, apples hey and are nice, work too.
• Searching for hey apples or apples are fails, because apples already appears in the document associated with like and hey.

I don't know what causes this behaviour, but it does not happen with the issues search, so it's probably not a bug in Bleve.

I'll try to look into this when I have some time.

[guillep2k]

Closed by #7878