$ git clone -n https://src.fedoraproject.org/rpms/perl-Time-Out.git /var/lib/mock/f40-build-2202651-51890/root/chroot_tmpdir/scmroot/perl-Time-Out
Cloning into '/var/lib/mock/f40-build-2202651-51890/root/chroot_tmpdir/scmroot/perl-Time-Out'...
$ git fetch origin 0d999bf70014f93a568c81de8cadd7b1d3df5ba0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Time-Out
 * [new ref]         0d999bf70014f93a568c81de8cadd7b1d3df5ba0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d999bf 0.24 bump