When brim is activated, elephant foot compensation and skirt should automatically be disabled

[natthapolvanasrivilai]

Operating system type + version

PrusaSlicer
Version: 2.3.0+win64
Build: PrusaSlicer-2.3.0+win64-202101111315
Operating System: Windows
System Architecture: 64 bit
Windows Version: Windows 10 (build 19042), 64-bit edition

3D printer brand / version + firmware version (if known)

Not related

Behavior

Brim feature and elephant foot compensation should not be allowed to work together.
In the picture the brim is set to 10mm and elephant foot compensation is set to 2mm (exaggerated for demo purpose).
You can see that the brim was not attached to the part, thus brim is fully useless.

When elephant foot compensation is set to 0, brim work as expected.

Skirt also causes disconnected brim.
In the picture, brim is set to 10mm and the skirt distance from part is 2mm.
This break the brim connection to the part at exactly 2mm point. Which make the brim only 2mm wide.

Project File (.3MF) where problem occurs

Upload a PrusaSlicer Project File (.3MF) (Plater -> Export plate as 3MF for Slic3r PE 1.41.2 and older, File -> Save / Save Project for PrusaSlicer, Slic3r PE 1.42.0-alpha and newer)
Images (PNG, GIF, JPEG), PDFs or text files could be drag & dropped to the issue directly, while all other files need to be zipped first (.zip, .gz)

[rtyr]

Duplicate of #3692, #3870, etc. Closing.