@Override
	public Set<VTMatchTag> getMatchTags() {
		Set<VTMatchTag> tags = new HashSet<>();
		try {
			lock.acquire();
			RecordIterator records = matchTagAdapter.getRecords();
			while (records.hasNext()) {
				DBRecord record = records.next();
				tags.add(getMatchTagNew(record));
			}
		}
		catch (IOException e) {
			dbError(e);
		}
		finally {
			lock.release();
		}
		return tags;
	}
Mark the state of a Version Tracking item as having changed and generate
the event of the specified type.  Any or all parameters may be null.
@param eventType event type
@param affected the version tracking object that was affected by the change.
@param oldValue original value or an Object that is related to the event.
@param newValue new value or an Object that is related to the event.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/api/db/VTSessionDB.java