linking: remove redundant 'dont_move' parameter
The target.dont_move
property is only meant to be used with target.object
metadata property, not smart filters metadata properties. This was probably left accidentally unused when designing a solution for #524 (closed) involving smart filters.
If we don't want the smart filter's target to change when its metadata changes, maybe we should consider adding a new filter.smart.dont-move
property... but I am not sure if this will be useful.
Fixes #558 (closed)