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Composite rendering more images than needed
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Description

System Information
Operating system: Windows 10
Graphics card: GTX 970

Blender Version
Broken: 2.80, 3d8cbb534f82
Worked: 2.79b

Short description of error

When using composite to render multiple images at once. It render images twice (or more) for the other scenes other than the original. In the Blender 2.79 that not happen.
It also renders all render layers even those are not needed or asked for in Composite (but that happen in Blender 2.79b also, sure it's look like a bug too)

Exact steps for others to reproduce the error
Open the .blend


Press F12
Blender 2.79b renders 3 images
Blender 2.8 renders 5 images

Event Timeline

Philipp Oeser (lichtwerk) triaged this task as Confirmed, Medium priority.

Confirmed at first sight, checking...

Philipp Oeser (lichtwerk) claimed this task.

Seems like it is going over all RenderLayer nodes and renders the corresponding scene no matter if has been rendered already...

2.7 tagged the RenderLayer node with LIB_TAG_DOIT, which is missing in 2.8... Diff/Fix incoming...