There are large ex4300 stacks with hundreds of access ports. The bulk of these ports are access ports on a single VLAN, but there are exceptions sprinkled about.
With Junos 13.2, the exception interfaces can be configured with a VLAN, and this specific VLAN config overrides the config inherited by the interface-range it is a part of.
Apparently with 14.1, the more specific config under an interface does not overrite the inheritance, but is merged with it. So the config check will error out because it looks (for the exceptions with specific interface configs) that more than one VLAN is configured on an access port. This looks like a backward step, making interface config more cumbersome, has anyone else run into this?