Comment 7 for bug 1805695

@Frank, are B and C in @eelik's example in #5 part of the current project? If so, then it makes sense that the B and C references are cleared because all references in the appended schematic(s) are cleared not just the new reference paths. We would need to change the code to only clear the references of the appended reference paths which would be rather complex. We opted for the easy way out and cleared all reference paths which would cause the behavior you are seeing.