$ git clone -n https://src.fedoraproject.org/rpms/rubygem-sqlite3.git /var/lib/mock/f45-build-35331-694/root/chroot_tmpdir/scmroot/rubygem-sqlite3
Cloning into '/var/lib/mock/f45-build-35331-694/root/chroot_tmpdir/scmroot/rubygem-sqlite3'...
$ git fetch origin 622707d4bfbdb01dc946ead94faa0c191afb86b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-sqlite3
 * [new ref]         622707d4bfbdb01dc946ead94faa0c191afb86b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 622707d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild