$ git clone -n https://src.fedoraproject.org/rpms/kf5-kemoticons.git /var/lib/mock/f45-build-14815-464/root/chroot_tmpdir/scmroot/kf5-kemoticons
Cloning into '/var/lib/mock/f45-build-14815-464/root/chroot_tmpdir/scmroot/kf5-kemoticons'...
$ git fetch origin 40c3ed1d9ed3263214ee31dc7ddb34022c7871f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kemoticons
 * [new ref]         40c3ed1d9ed3263214ee31dc7ddb34022c7871f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40c3ed1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild