$ git clone -n https://src.fedoraproject.org/rpms/perl-Type-Tiny.git /var/lib/mock/f45-build-27253-622/root/chroot_tmpdir/scmroot/perl-Type-Tiny
Cloning into '/var/lib/mock/f45-build-27253-622/root/chroot_tmpdir/scmroot/perl-Type-Tiny'...
$ git fetch origin c6fc072d3722d66f4ca4374865def7eb5218d171:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Type-Tiny
 * [new ref]         c6fc072d3722d66f4ca4374865def7eb5218d171 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6fc072 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild