@Override
	public void clearReferencesTo(Lifespan span, AddressRange range) {
		try (LockHold hold = manager.getTrace().lockWrite()) {
			long startSnap = span.lmin();
			for (DBTraceXRefEntry xref : xrefMapSpace.reduce(
				TraceAddressSnapRangeQuery.intersecting(range, span)).values()) {
				DBTraceReferenceEntry ref = getRefEntryForXRefEntry(xref);
				truncateOrDeleteEntry(ref, startSnap);
			}
			// TODO: Coalesce events?
		}
	}
A reference entry

<p>
Version history:
<ul>
<li>1: Change {@link #toAddress} to 10-byte fixed encoding</li>
<li>0: Initial version and previous unversioned implementation</li>
</ul>
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/symbol/DBTraceReferenceSpace.java