$ git clone -n https://src.fedoraproject.org/rpms/opendbx.git /var/lib/mock/f41-build-756395-13418/root/chroot_tmpdir/scmroot/opendbx
Cloning into '/var/lib/mock/f41-build-756395-13418/root/chroot_tmpdir/scmroot/opendbx'...
$ git fetch origin e88d4c3c7b32d373d417c26e9a6244eac7ca7144:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opendbx
 * [new ref]         e88d4c3c7b32d373d417c26e9a6244eac7ca7144 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e88d4c3 Eliminate use of obsolete %patchN syntax (#2283636)