ValidatorDialog: Ignore button should be disabled sometimes

[GerdP]

If you run validator and it shows a list of errors or warnings, you can select the entry "Errors" or "Warnings". This will enable the Ignore Button. Clicking on this button has rather unpredictable effects
and therefore the button should be disabled unless a specific type of error is selected.
Load the attached sample.osm and run validator. You shoud get a list similar to
If you left click on Warnings the ignore button is enabled. If you click it the resulting ignore list contains

3000
303

If you select the two different types of warning and click Ignore you'll get

3000_*[amenity=place_of_worship][!religion]
303

Note that the first list will ignore all errors reported by MapCSSTagChecker while the second one is much more specific. Both will not ignore "all warnings" although that would be what I would expect to happen.
My conclusion: The button should be disabled unless the selection contains a specific error.