tdb: fix autoexpansion of current context

This was broken by a trunk change to PluggableTreeMorph in spring.

packages/TraceDebugger.package/TraceDebugger.class/instance/doStep..st

@@ -9,7 +9,7 @@ doStep: aBlock
 
 	interruptedContext := self interruptedContext.
 	interruptedTimeIndex := self cursor timeIndex.
-	self selectContext: interruptedContext.
+	self selectAndExpandContext: interruptedContext.
 	(self selectedContext tdbIdentical: interruptedContext) ifFalse:
 		[self flag: #coroutines. "Selection 'did not work'! The new context path may no longer contain the interrupted context at the expected position from the trace. Select it again without updating the context path."
 		self cursor timeIndex: interruptedTimeIndex.

packages/TraceDebugger.package/TraceDebugger.class/instance/notifierSelectContext..st

@@ -1,5 +1,5 @@
 accessing - toolbuilder
 notifierSelectContext: aContext
 
-	self selectContext: aContext.
+	self selectAndExpandContext: aContext.
 	self debug.

packages/TraceDebugger.package/TraceDebugger.class/instance/selectAndExpandContext..st

@@ -0,0 +1,6 @@
+accessing - context
+selectAndExpandContext: aContext
+
+	self cacheSourcesDuring:
+		[self selectContext: aContext.
+		self changed: #(openPath) , (self treeSelectedContextPath collect: [:context | context asString])].

packages/TraceDebugger.package/TraceDebugger.class/methodProperties.json

@@ -141,7 +141,7 @@
 		"doItContext" : "ct 3/15/2022 17:49",
 		"doItReceiver" : "ct 3/15/2022 17:26",
 		"doSelfUpdate" : "ct 3/12/2022 18:02",
-		"doStep:" : "ct 3/15/2022 18:06",
+		"doStep:" : "ct 12/29/2023 01:15",
 		"doStepBackward:" : "ct 1/26/2022 18:47",
 		"doStepForward:" : "ct 1/26/2022 18:47",
 		"dragContext:" : "ct 3/15/2022 20:50",
@@ -196,7 +196,7 @@
 		"nextFindSignature" : "ct 2/3/2022 16:39",
 		"nextFindSignature:" : "ct 2/3/2022 16:39",
 		"notifierButtonSpecs" : "ct 12/28/2023 21:35",
-		"notifierSelectContext:" : "ct 1/26/2022 20:16",
+		"notifierSelectContext:" : "ct 12/29/2023 01:15",
 		"notifierStackSize" : "ct 1/26/2022 20:31",
 		"open" : "ct 11/20/2021 15:34",
 		"openFull:label:" : "ct 3/19/2022 20:14",
@@ -214,6 +214,7 @@
 		"restart" : "ct 1/8/2022 01:26",
 		"rootContexts" : "ct 1/25/2022 20:02",
 		"runToSelection:" : "ct 2/17/2022 19:10",
+		"selectAndExpandContext:" : "ct 12/29/2023 01:16",
 		"selectContext:" : "ct 2/12/2022 21:25",
 		"selectedContext" : "ct 11/20/2021 22:20",
 		"selectedContextPath" : "ct 1/26/2022 17:06",