@Override
	public String getDescription() {
		lock.acquire();
		try {
			checkIsValid();
			String s = record.getString(CompositeDBAdapter.COMPOSITE_COMMENT_COL);
			return s == null ? "" : s;
		}
		finally {
			lock.release();
		}
	}
Handle replacement of datatype which may impact bitfield datatype.

@param bitfieldComponent bitfield component
@param oldDt             affected datatype which has been removed or replaced
@param newDt             replacement datatype
@return                  true if bitfield component was modified
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/CompositeDB.java