When determining what parts of a rule to output, Automapping only seems to look at tiles, and if objects are present, they are only output if they overlap an output tile as well. This is unintuitive and feels like a bug.

For example, these two rules that look for "NonEmpty" on the input layer and have just an object output layer will output nothing:

My input, unmodified by this rule:

But this is what I expect:

And this rule that outputs a tile in a location other than the object's location will output the tile, but not the object:

However, this rule, which outputs both an object and a tile at the same location, will work correctly:

If I want to make a rule that outputs only an object at some location, I have to have a tile output layer with a tile on it that will be ignored:

I think any tile touched by an output object should count as part of the output region. For example, this small object would add the selected tile to the output region:

Care would need to be taken with non-rectangular objects. For example, these are the total regions I expect these two rules to have:

But if the bounding box of the object is used instead of checking whether a tile actually overlaps the object, then the regions would be like this, and considered a single rule:

Alternatively, if it's intended that objects don't contribute to the output region (e.g. to avoid specifically this kind of weirdness with the shapes), then the fact that they don't contribute and may need output Tile Layers with Ignore tiles to output should be documented (I can add it to my rewrite draft).