boolean modifiedSinceCheckout() {
		synchronized (fileSystem) {
			return isCheckedOut() &&
				folderItem.getCurrentVersion() != folderItem.getLocalCheckoutVersion();
		}
	}
Returns true if this is a checked-out file which has been modified since it was checked-out.
@return true if modified since check-out
Ghidra/Framework/Project/src/main/java/ghidra/framework/data/GhidraFileData.java