In theory the same applies to Java, if I have a java_library, and none of the inputs have changed, I shouldn't have to rebuild anything. But the theory often do

In theory the same applies to Java, if I have a java_library, and none of the inputs have changed, I shouldn't have to rebuild anything. But the theory often doesn't match up to the reality with respect to objfs caching of dependencies in my experience. Also, any non-trivial app at Google is going to touch non-Go dependencies.