fix error when project path contains "src" (#1185) (#1194)

fix error when project path contains src (#1185)

Co-authored-by: Tim Havlicek <t.havlicek@s-v.de>
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f