$ git clone -n https://src.fedoraproject.org/rpms/perl-Scope-Upper.git /var/lib/mock/f41-build-815837-149783/root/chroot_tmpdir/scmroot/perl-Scope-Upper
Cloning into '/var/lib/mock/f41-build-815837-149783/root/chroot_tmpdir/scmroot/perl-Scope-Upper'...
$ git fetch origin 1501f536a7c5606c9bdf083416899b71e0708078:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Scope-Upper
 * [new ref]         1501f536a7c5606c9bdf083416899b71e0708078 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1501f53 Perl 5.40 rebuild