$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-audio.git /var/lib/mock/f40-build-2306892-57191/root/chroot_tmpdir/scmroot/rust-gstreamer-audio
Cloning into '/var/lib/mock/f40-build-2306892-57191/root/chroot_tmpdir/scmroot/rust-gstreamer-audio'...
$ git fetch origin 77d4d7d102a375a2422253e2e1fcdf5817e6e6d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-audio
 * [new ref]         77d4d7d102a375a2422253e2e1fcdf5817e6e6d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77d4d7d Update to version 0.21.3; Fixes RHBZ#2249231