$ git clone -n https://src.fedoraproject.org/rpms/secvarctl.git /var/lib/mock/f45-build-35773-699/root/chroot_tmpdir/scmroot/secvarctl
Cloning into '/var/lib/mock/f45-build-35773-699/root/chroot_tmpdir/scmroot/secvarctl'...
$ git fetch origin 6f2c0c2a4fdafd3a3b1805805fbc70f81f1a27dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/secvarctl
 * [new ref]         6f2c0c2a4fdafd3a3b1805805fbc70f81f1a27dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f2c0c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild