$ git clone -n https://src.fedoraproject.org/rpms/perl-Time-Tiny.git /var/lib/mock/f41-build-1211652-22574/root/chroot_tmpdir/scmroot/perl-Time-Tiny
Cloning into '/var/lib/mock/f41-build-1211652-22574/root/chroot_tmpdir/scmroot/perl-Time-Tiny'...
$ git fetch origin 2013265126ca63d87be00df49f0dd2721b42bcfe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Time-Tiny
 * [new ref]         2013265126ca63d87be00df49f0dd2721b42bcfe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2013265 Eliminate use of obsolete %patchN syntax (#2283636)