$ git clone -n https://src.fedoraproject.org/rpms/libcdaudio.git /var/lib/mock/f41-build-705917-13001/root/chroot_tmpdir/scmroot/libcdaudio
Cloning into '/var/lib/mock/f41-build-705917-13001/root/chroot_tmpdir/scmroot/libcdaudio'...
$ git fetch origin c6d05710eb7fd2def0838ecc2a0a08a3a17da2dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcdaudio
 * [new ref]         c6d05710eb7fd2def0838ecc2a0a08a3a17da2dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6d0571 Eliminate use of obsolete %patchN syntax (#2283636)