$ git clone -n https://src.fedoraproject.org/rpms/perl-Role-HasMessage.git /var/lib/mock/f41-build-side-1-2807242-32872/root/chroot_tmpdir/scmroot/perl-Role-HasMessage
Cloning into '/var/lib/mock/f41-build-side-1-2807242-32872/root/chroot_tmpdir/scmroot/perl-Role-HasMessage'...
$ git fetch origin e85b1759a94f02172e46e900bbf8a6219769cc94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Role-HasMessage
 * [new ref]         e85b1759a94f02172e46e900bbf8a6219769cc94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e85b175 convert GPL+ or Artistic license to SPDX