$ git clone -n https://src.fedoraproject.org/rpms/solaar.git /var/lib/mock/f45-build-36189-702/root/chroot_tmpdir/scmroot/solaar
Cloning into '/var/lib/mock/f45-build-36189-702/root/chroot_tmpdir/scmroot/solaar'...
$ git fetch origin e6542f18abf9ceb4cee3f7642c629e3f20ff1f0a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/solaar
 * [new ref]         e6542f18abf9ceb4cee3f7642c629e3f20ff1f0a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6542f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild