$ git clone -n https://src.fedoraproject.org/rpms/codeblocks.git /var/lib/mock/f42-build-864517-172390/root/chroot_tmpdir/scmroot/codeblocks
Cloning into '/var/lib/mock/f42-build-864517-172390/root/chroot_tmpdir/scmroot/codeblocks'...
$ git fetch origin 732a0429b3d7369262b58b8a36c814f53d89392d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/codeblocks
 * [new ref]         732a0429b3d7369262b58b8a36c814f53d89392d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 732a042 work around a libtool issue (#2331361)