問題：
When I have a loader configuration with multiple tests matching a file, I would expect only the first matching loader to be used but that doesn't seem to be the case.當我有一個加載器配置與多個測試匹配一個文件時，我希望只使用第一個匹配的加載器，但情況似乎並非如此。
I tried reading the source but even when I found the bit that I think implements the loading I can't understand how it behaves.我嘗試閱讀 源代碼，但即使發現我認爲實現加載的位，我也無法理解它的行爲方式。
The documentation doesn't mention how that situation should behave either.文檔也沒有提到這種情況應該如何表現。