Comment 1 for bug 1713060

Modifying network-related configuration options after manila has already created some shares using those options is not supported. Manila treats some configuration options are immutable (which is probably a bad design) and the simplest way to fix the problem is to better document which options can't be changed without causing breakage. This looks like one of those cases.

Longer term, we should find a way to not treat information in the config file as immutable and for stuff that truly must be immutable to go into the database, not the config file.