Currently, changes are replicated by hands (and rules exports) from dev to a test stage available to the customers. There is actually no live site.
We are going to use the Features module and
hook_update_N() in order to deploy the live site.
I wonder what will hapen if I add a feature including some rules already existing on the test stage (created by hand before I got assigned on this project).
Will the rules be overwritten? Will I get errors? I read that updating features files actually updates the rules (or whatever is inside the feature).