* Fix local var error and add test
* Add error handling that mentions ixlan and update one test
* Add conditional
* test to reproduce #889 and fixes for #889
* Remove member type checking
* check requirement_of_id instead of requirement_of as that can raise an exception if the relationship isn't cached
* ix-f suggestion to modify netixlan to clear an ip field is now stated as "Clear IPvX address" instead of "Set IPvX address"
* handle multiple vlans for prefixes defined on ixlan
* rewording
* fix tests
* black formatted
Co-authored-by: Elliot Frank <elliot@20c.com>
Co-authored-by: Stefan Pratter <stefan@20c.com>
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