Reread submodule info from config, index, and HEAD.
Call this to reread cached submodule information for this submodule if you have reason to believe that it has changed.
The submodule to reload
Force reload even if the data doesn't seem out of date
0 on success, <0 on error
See Implementation
Reread submodule info from config, index, and HEAD.
Call this to reread cached submodule information for this submodule if you have reason to believe that it has changed.