$ git clone -n https://src.fedoraproject.org/rpms/flatpak-module-tools.git /var/lib/mock/f42-build-3418964-45159/root/chroot_tmpdir/scmroot/flatpak-module-tools
Cloning into '/var/lib/mock/f42-build-3418964-45159/root/chroot_tmpdir/scmroot/flatpak-module-tools'...
$ git fetch origin 6b7a772a4da0f3a326b2097b9e29fa3d3780dae5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flatpak-module-tools
 * [new ref]         6b7a772a4da0f3a326b2097b9e29fa3d3780dae5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b7a772 Update to 1.1.1