$ git clone -n https://src.fedoraproject.org/rpms/sugar-dimensions.git /var/lib/mock/f45-build-36569-706/root/chroot_tmpdir/scmroot/sugar-dimensions
Cloning into '/var/lib/mock/f45-build-36569-706/root/chroot_tmpdir/scmroot/sugar-dimensions'...
$ git fetch origin 5f5e452da813ddb16963d12e9c02f00cb71bbafe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sugar-dimensions
 * [new ref]         5f5e452da813ddb16963d12e9c02f00cb71bbafe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f5e452 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild