$ git clone -n https://src.fedoraproject.org/rpms/libappindicator.git /var/lib/mock/f45-build-15840-480/root/chroot_tmpdir/scmroot/libappindicator
Cloning into '/var/lib/mock/f45-build-15840-480/root/chroot_tmpdir/scmroot/libappindicator'...
$ git fetch origin c8808aeff0a39345b0de9563fd39edc65714d736:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libappindicator
 * [new ref]         c8808aeff0a39345b0de9563fd39edc65714d736 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8808ae Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild