$ git clone -n https://src.fedoraproject.org/rpms/python-uamqp.git /var/lib/mock/f39-build-1866127-42552/root/chroot_tmpdir/scmroot/python-uamqp
Cloning into '/var/lib/mock/f39-build-1866127-42552/root/chroot_tmpdir/scmroot/python-uamqp'...
$ git fetch origin 5a8b941cb129d6de0a7e4be830a9fb9a3c34fecb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-uamqp
 * [new ref]         5a8b941cb129d6de0a7e4be830a9fb9a3c34fecb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a8b941 Bump revision for FTBFS