$ git clone -n https://src.fedoraproject.org/rpms/perl-MooseX-Role-WithOverloading.git /var/lib/mock/f41-build-816849-150454/root/chroot_tmpdir/scmroot/perl-MooseX-Role-WithOverloading
Cloning into '/var/lib/mock/f41-build-816849-150454/root/chroot_tmpdir/scmroot/perl-MooseX-Role-WithOverloading'...
$ git fetch origin 1887a8d77147790d04a82078ccbafb7b21f976a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooseX-Role-WithOverloading
 * [new ref]         1887a8d77147790d04a82078ccbafb7b21f976a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1887a8d Perl 5.40 rebuild