Return false if there was no space for supports

src/paint/supports.c

@@ -517,7 +517,7 @@ bool metal_a_supports_paint_setup(int supportType, int segment, int special, int
 					if (height <= gSupportSegments[newSegment].height) {
 						esi += 72;
 						newSegment = esi[segment * 8];
-						return true;
+						return false;
 					}
 				}
 			}