$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Build-Tiny.git /var/lib/mock/f45-build-24787-606/root/chroot_tmpdir/scmroot/perl-Module-Build-Tiny
Cloning into '/var/lib/mock/f45-build-24787-606/root/chroot_tmpdir/scmroot/perl-Module-Build-Tiny'...
$ git fetch origin 289f9c568e8503d8e9a0ccec4802948a4a09a455:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Build-Tiny
 * [new ref]         289f9c568e8503d8e9a0ccec4802948a4a09a455 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 289f9c5 Conditionalize CPAN::Requirements::Dynamic dependency