- Apache-2.0 code may be relicensed as MPL-2.0 (1).
- Apache-2.0 code is incompatible with GPL-2 (2).
- MPL-2.0 code may also be distributed under GPL-2 when done as a larger work (3 - Q14).
The riddle: How can all three of these be true at once?
EDIT: To be clear, I have no idea. But it does have implications for assuming that a piece of MPL-2.0 work can just be included in a GPL-2 project.