fix parsing pov stringtables

src/PacketHandler/StringTable.ts

@@ -23,7 +23,9 @@ export function handleStringTable(packet: StringTablePacket, match: Match) {
 		}
 		if (table.name === 'instancebaseline') {
 			for (const instanceBaseLine of table.entries) {
-				saveInstanceBaseLine(instanceBaseLine, match);
+				if (instanceBaseLine) {
+					saveInstanceBaseLine(instanceBaseLine, match);
+				}
 			}
 		}
 	}

src/Parser/StringTableParser.ts

@@ -33,7 +33,11 @@ export function parseStringTable(stream: BitStream, table: StringTable, entries:
 
 				const restOfString = stream.readASCIIString();
 
-				value = history[index].text.substr(0, bytesToCopy) + restOfString;
+				if (!history[index].text) {
+					value = restOfString; // best guess, happens in some pov demos but only for unimported tables it seems
+				} else {
+					value = history[index].text.substr(0, bytesToCopy) + restOfString;
+				}
 			} else {
 				value = stream.readASCIIString();
 			}
@@ -55,11 +59,11 @@ export function parseStringTable(stream: BitStream, table: StringTable, entries:
 			if (userData) {
 				existingEntry.extraData = userData;
 			}
-			history.push(existingEntry);
 
 			if (value) {
 				existingEntry.text = value;
 			}
+			history.push(existingEntry);
 		} else {
 			table.entries[entryIndex] = {
 				text:      value,

src/tests/snapshot/parse.ts

@@ -21,4 +21,8 @@ suite('Parse basic demo info', () => {
 	test('Parse demo with new celt voice codec', () => {
 		testDemo('celt');
 	});
+
+	test('Parse pov demo', () => {
+		testDemo('pov');
+	});
 });