$ git clone -n https://src.fedoraproject.org/rpms/perl-Moose.git /var/lib/mock/f41-build-1287137-23295/root/chroot_tmpdir/scmroot/perl-Moose
Cloning into '/var/lib/mock/f41-build-1287137-23295/root/chroot_tmpdir/scmroot/perl-Moose'...
$ git fetch origin 2feb32c3efb83a3d79b409d0fa7dbf4b9e7df317:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Moose
 * [new ref]         2feb32c3efb83a3d79b409d0fa7dbf4b9e7df317 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2feb32c Perl 5.40 re-rebuild of bootstrapped packages