$ git clone -n https://src.fedoraproject.org/rpms/ghc-semver.git /var/lib/mock/f45-build-10753-424/root/chroot_tmpdir/scmroot/ghc-semver
Cloning into '/var/lib/mock/f45-build-10753-424/root/chroot_tmpdir/scmroot/ghc-semver'...
$ git fetch origin 78b2a4d8e5ca2459b8e20f1a08d243f1a67db863:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-semver
 * [new ref]         78b2a4d8e5ca2459b8e20f1a08d243f1a67db863 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78b2a4d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild