double quotes in definition list not rendered

Hello, I have a problem with double quotes not being rendered in the
term of an rst definition list in the mpv documentation:

i show-text "Filename: ${filename}"
    shows the filename of the current file when pressing the ``i`` key

The double quotes are rendered in the html version, but not in the
manpage.

With i show-text """Filename: ${filename}"", they are rendered in the
manpage but the html version has all those quotes literally.

If the first " is preceded by a character other than space, the " are
rendered.

Is this a bug or am I missing something?