Fixes: #18336 - Perform Rack object validation of u_height and starting_unit on rack_type if present #18395
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Fixes: #18336
Current model validation in
Rack.clean()examines theu_heightandstarting_unitfields but only considers the fields on the Rack itself, not on the RackType if assigned, in which those fields' values override those on the Rack. This can lead to a situation where a Rack with assigned devices above a certain elevation can be assigned to a RackType incompatible with those elevations, because the validation misses the effectiveu_heightandstarting_unitof the requested RackType. Subsequent errors occur in SVG rendering andRackFormvalidation.This situation is prevented with this change, which ensures that these two fields are validated with consideration of both Rack and RackType values, and assigns the resulting
ValidationErrorto the appropriate form field depending on whether a RackType has been selected or not.