public void releaseWriteLock() throws IOException {
		try {
			refreshArchive(false);
		}
		catch (LockException e) {
			// we know this can't happen, since we are already have the write lock
		}
		hasWriteLock = false;
		setChanged(false);
	}
Manages a DataTypeFileManager and relative state.  For example, whether the manager is writable
or whether changes have been made.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java