$ git clone -n https://src.fedoraproject.org/rpms/perl-Perl-Metrics-Simple.git /var/lib/mock/f40-build-2020089-46593/root/chroot_tmpdir/scmroot/perl-Perl-Metrics-Simple
Cloning into '/var/lib/mock/f40-build-2020089-46593/root/chroot_tmpdir/scmroot/perl-Perl-Metrics-Simple'...
$ git fetch origin dacd8beaf99713a0fe6ba00f7524dcf494286988:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Perl-Metrics-Simple
 * [new ref]         dacd8beaf99713a0fe6ba00f7524dcf494286988 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dacd8be 1.0.3 bump