$ git clone -n https://src.fedoraproject.org/rpms/open62541.git /var/lib/mock/f45-build-20962-576/root/chroot_tmpdir/scmroot/open62541
Cloning into '/var/lib/mock/f45-build-20962-576/root/chroot_tmpdir/scmroot/open62541'...
$ git fetch origin 5a2ec8ad56084464c2dd350f662f9e4a53264825:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/open62541
 * [new ref]         5a2ec8ad56084464c2dd350f662f9e4a53264825 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a2ec8a 1.5.7