mod=example.com/fix
base=v1.0.0
version=v1.1.0-incompatible-same
release=v1.0.1  # not actually valid, but gorelease can't tell
-- want --
example.com/fix/bad
-------------------
errors in base version:
	bad/bad.go:3:15: undeclared name: NOTYPE

Incompatible changes:
- Bad: changed from func() int to func() string
- Broken: changed from func() invalid type to func() int

v1.0.1 is a valid semantic version for this release.
Errors were found in the base version. Some API changes may be omitted.