Search not finding other filetypes

Steps to reproduce

I enabled ‘Detect all file extensions’.

Expected result

search should find other file extensions like ‘epub’!

Actual result

But search does not find these other file extensions like ‘epub’!

Environment

  • Operating system: Android 9
  • Debug info:
    Android app 1.3.2(69)

Additional information

If you don’t use any search operator you will only search over
all markdown files, title and their content, all canvases and their content.