[Switch] loading .adf from inside .zip does not work

Created by: ms2048

I'm on RetroArch 1.9.0 on Nintendo Switch with newest core available from Core Updater (PUAE 2.6.1 e187a61d). Trying to open contents from inside a zip like this:

Load Contents -> ... -> (zip file) -> Browse Archive -> (adf file)

does not work. The Amiga starts but without a disk inserted into a drive.

This worked ok in an older build (bundled within RetroArch 1.9.0 for Switch). On the other hand, opening uncompressed .adf files works:

Load Contents -> ... -> (adf file)

and also opening a zip as a whole like this:

Load Contents -> ... -> (zip file) -> Load Archive -> Commodore - Amiga (P-UAE)

just the first way stopped working.