public static boolean isSynchronizing() {
		return isSynchronizing.get();
	}
Returns true the underlying file system is going through a long-running synchronization 
operation while holding the {@code filesystem} lock.   Calling this method allows clients
in the Swing thread to avoid  calling methods that require a file system lock, which would
cause the UI to lock during the synchronizing operation.

@return true if synchronizing
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/FileSystemSynchronizer.java