Feature request #1448
overview map won't show layer when Use scale dependent rendering is on in layer properties
|Pull Request or Patch supplied:||Resolution:||fixed|
|Easy fix?:||No||Copied to github as #:||11508|
The scale settings don't matter - it is that scale dependent rendering is enabled and that the overview map has no scale (some default, actually).
The overview may show the layer if it was displayed before the scale dependent rendering was enabled, but will disappear when the overview is redrawn as on a layer visibility change.
The patch provided adds a test for mOverview in QgsMapRenderer::render() so the layer will be rendered if it has been added to the overview map.