$ git clone -n https://src.fedoraproject.org/rpms/hexchat.git /var/lib/mock/f40-build-791654-137676/root/chroot_tmpdir/scmroot/hexchat
Cloning into '/var/lib/mock/f40-build-791654-137676/root/chroot_tmpdir/scmroot/hexchat'...
$ git fetch origin 488ea747d698382f14c599d21e9f79e41f6e16bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hexchat
 * [new ref]         488ea747d698382f14c599d21e9f79e41f6e16bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 488ea74 Update to the last upstream version, 2.16.2. ;(