$ git clone -n https://src.fedoraproject.org/rpms/liberasurecode.git /var/lib/mock/f41-build-1045151-19054/root/chroot_tmpdir/scmroot/liberasurecode
Cloning into '/var/lib/mock/f41-build-1045151-19054/root/chroot_tmpdir/scmroot/liberasurecode'...
$ git fetch origin 1b98b2198742bbbfe1c85830bee38180af87adae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liberasurecode
 * [new ref]         1b98b2198742bbbfe1c85830bee38180af87adae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b98b21 Eliminate use of obsolete %patchN syntax (#2283636)