$ git clone -n https://src.fedoraproject.org/rpms/python-colcon-devtools.git /var/lib/mock/f45-build-29986-642/root/chroot_tmpdir/scmroot/python-colcon-devtools
Cloning into '/var/lib/mock/f45-build-29986-642/root/chroot_tmpdir/scmroot/python-colcon-devtools'...
$ git fetch origin 1c4b8ac86a7fc77e62687ab22e808c8b1b6fbc25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-colcon-devtools
 * [new ref]         1c4b8ac86a7fc77e62687ab22e808c8b1b6fbc25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c4b8ac Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild