$ git clone -n https://src.fedoraproject.org/rpms/perl-TAP-Formatter-JUnit.git /var/lib/mock/f42-build-side-1-3498696-45963/root/chroot_tmpdir/scmroot/perl-TAP-Formatter-JUnit
Cloning into '/var/lib/mock/f42-build-side-1-3498696-45963/root/chroot_tmpdir/scmroot/perl-TAP-Formatter-JUnit'...
$ git fetch origin 892ebb4fb7ac4137e4a5488ef467aa6e520fdeef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-TAP-Formatter-JUnit
 * [new ref]         892ebb4fb7ac4137e4a5488ef467aa6e520fdeef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 892ebb4 Update to 0.17 (rhbz#2344113)