Why generative fill masks expanding my selections?

[yolsuzyolcu]

When I select an area and use generative fill, photoshop creates a new layer with a mask, but the problem is photoshop expanding my selection on  this mask, so photoshop filling some areas which I didnt select, how can I prevent photoshop to expand my selection? Anti-aliasing off, reduced mask width but nothing changed.

[jefbr]

What you can do is save your selection first as a layer mask, duplicate the layer you want to do generative fill on, reselect your selection and do the generative fill on the layer you just duplicated.

When done, take your saved mask and apply it to the duplicate layer to force only your selection to be able to be modified.

[yolsuzyolcu]

That works but if I wanna make a small change on mask , it will create a new layer and extand my mask again, I should repeat all these process when I wanna change the mask, there should be a basic way to do it

[jefbr]

In that case, just make a group around your layer, move the layer mask to the group, and remember to unlink or relink the layer mask when applying a change.

For transformations, you probably want to have the group mask linked, for layer modificiations you probably want it unlinked.

[Donald W. Unruh]

Same problem here. It appears that the selection is changed prior to the app performing the generative fill, therefore areas that you do not want to be generatively filled are. modified.

I have been unable to get around this bug.

[c.pfaffenbichler]

I guess Artificial Intelligence will not always produce the result one might expect … 

But unless an Adobe employee chimes in it may be hard to assess why/how the process evaluates and »corrects« the Selection. 

[Donald W. Unruh]

I suspect this is not an AI problem, I would bet the problem is one of those two-legged critters.

[nealbridgens]

I hate this too. I want to be in control of what get's changed. It's behaving like a consumer app rather than a pro app.

[bellevue scott]

yes, generative fill is expanding my selections and then ruining things that I haven't selected. Here's an example. I selected the sky, so only the sky is selected. With generative fill I said "stormy sky" (I've tried several similar promts, like give me more clouds). It does this, but also destroys this barn which isn't selected. 

 

 I've tried various prompts, and they've all been worse than this. This was the best one.