$ git clone -n https://src.fedoraproject.org/rpms/mingw-flac.git /var/lib/mock/f41-build-1037573-18804/root/chroot_tmpdir/scmroot/mingw-flac
Cloning into '/var/lib/mock/f41-build-1037573-18804/root/chroot_tmpdir/scmroot/mingw-flac'...
$ git fetch origin 6728de464d834d58b5b0280e365b6a18fc2a8808:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-flac
 * [new ref]         6728de464d834d58b5b0280e365b6a18fc2a8808 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6728de4 Eliminate use of obsolete %patchN syntax (#2283636)