private void assertFullyQualifiedFSRL(FSRL fsrl) throws IOException {
		if (fsrl.getMD5() == null) {
			throw new IOException("Bad FSRL, expected fully qualified: " + fsrl);
		}
	}
Returns a cloned copy of the {@code FSRL} that should have MD5 values specified.
(excluding GFile objects that don't have data streams)

@param fsrl {@link FSRL} of the file that should be forced to have a MD5
@param monitor {@link TaskMonitor} to watch and update with progress.
@return possibly new {@link FSRL} instance with a MD5 value.
@throws CancelledException if user cancels.
@throws IOException if IO problem.
Ghidra/Features/Base/src/main/java/ghidra/formats/gfilesystem/FileSystemService.java