$ git clone -n https://src.fedoraproject.org/rpms/ht-alegreya-fonts.git /var/lib/mock/f45-build-13483-451/root/chroot_tmpdir/scmroot/ht-alegreya-fonts
Cloning into '/var/lib/mock/f45-build-13483-451/root/chroot_tmpdir/scmroot/ht-alegreya-fonts'...
$ git fetch origin ad255d8d51e0ce70bedb86109abc3c0b5d84c05f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ht-alegreya-fonts
 * [new ref]         ad255d8d51e0ce70bedb86109abc3c0b5d84c05f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad255d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild