Collabora Online moves out of The Document Foundation

> Notwithstanding any other provision of this License [i.e. GPLv3], you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.

AGPLv3 has a similar clause:

> Notwithstanding any other provision of this License [i.e. AGPLv3], you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License.

Based on my non-lawyer non-expert opinion, it appears that each part remains under its own license, and the whole has to comply with all of the terms and conditions of both licenses. That seems really weird but potentially workable, if you're careful about tracking where everything came from.