mod=example.com/internalcompat/b
version=v1.0.0
release=v1.0.1
base=example.com/internalcompat/a@v1.0.0
-- want --
# example.com/internalcompat/a/p
## incompatible changes
V: changed from example.com/internalcompat/a/q.Q to example.com/internalcompat/b/q.Q