fix(amazonq): fix Q toolwindow potentially shows the wrong content (#5598)

* fix Q toolwindow possibly shows the wrong content

* cl

* patch

* changelog str

* test

Author: Will-ShaoHua

.changes/next-release/bugfix-a7fedb6e-13ab-4d6a-a9ea-293b3f533bad.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Fix issue where user can become stuck because Amazon Q Chat does not show authentication prompt"
+}

plugins/amazonq/chat/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/toolwindow/AmazonQToolWindowFactory.kt

@@ -99,7 +99,7 @@ class AmazonQToolWindowFactory : ToolWindowFactory, DumbAware {
                 override fun onProfileSelected(myProject: Project, profile: QRegionProfile?) {
                     if (project.isDisposed) return
                     AmazonQToolWindow.getInstance(project).disposeAndRecreate()
-                    qPanel.setContent(AmazonQToolWindow.getInstance(project).component)
+                    prepareChatContent(project, qPanel)
                 }
             }
         )

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/profile/QRegionProfileManager.kt

@@ -82,8 +82,9 @@ class QRegionProfileManager : PersistentStateComponent<QProfileState>, Disposabl
         // succeeded in listing profiles, but none match selected
         // profiles should be null if access denied or connection is not IdC
         if (profiles == null || profiles.none { it.arn == selected.arn }) {
-            invalidateProfile(selected.arn)
+            // Note that order matters, should switch to null first then invalidateProfile
             switchProfile(project, null, intent = QProfileSwitchIntent.Reload)
+            invalidateProfile(selected.arn)
             Telemetry.amazonq.profileState.use { span ->
                 span.source(QProfileSwitchIntent.Reload.value)
                     .amazonQProfileRegion(selected.region)
@@ -164,7 +165,7 @@ class QRegionProfileManager : PersistentStateComponent<QProfileState>, Disposabl
     }
 
     private fun invalidateProfile(arn: String) {
-        val updated = connectionIdToActiveProfile.filterValues { it.arn != arn }
+        val updated = connectionIdToActiveProfile.filterValues { it != null && it.arn != arn }
         connectionIdToActiveProfile.clear()
         connectionIdToActiveProfile.putAll(updated)
     }