Major change in a route not listed when impact filter is on

[pyrog]

https://knooppuntnet.nl/en/analysis/route/13139760/changes

The topology of the route changed, one node was replaced, and by side effect, the name change.

Impact off: last version v6 is listed.

Impact on: only the v1 is listed, but v6 is filtered 😢

[vmarc]

The analysis logic can set two flags for a change:

• happy
• investigate

The happy flag is intended to indicate that the mapping quality has improved (for example: issues have been resolved, new nodes were added, etc.).

The investigate flag is intended to indicate that mapping quality may have become worse (for example: there are new facts, routes or nodes have been removed, etc.).

The impact filter looks for changes where at least one of these flags is set.

A route name change does not result in either the happy flag or the investigate flag to be set. The route quality is ok before the change, and is still ok after the change. So although a route name change may be experienced as a significant change, it is probably not really necessary to draw other mappers attention to it by setting the happy or investigate flag.

[pyrog]

In this case the geometry and topology got significant change: the beginning node was replaced by a completely different node (not an OSM node with the same name/ref near the previous node).