Editor: fix completion character completions

Cleanup the proposal after an item is activated even if the proposal
widget is not visible anymore. Otherwise we might wrongly cleanup a
proposal that was triggered by a completion character while a completion
list was already open.

Change-Id: Ie95247de09313c5816cffd9a865b05183db02354
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/plugins/texteditor/codeassist/codeassistant.cpp b/src/plugins/texteditor/codeassist/codeassistant.cpp
index 815be89bba..05f3c8ae17 100644
--- a/src/plugins/texteditor/codeassist/codeassistant.cpp
+++ b/src/plugins/texteditor/codeassist/codeassistant.cpp
@@ -485,9 +485,10 @@ void CodeAssistantPrivate::destroyContext()
 
     if (isWaitingForProposal()) {
         cancelCurrentRequest();
-    } else if (isDisplayingProposal()) {
+    } else if (m_proposalWidget) {
         m_editorWidget->keepAutoCompletionHighlight(false);
-        m_proposalWidget->closeProposal();
+        if (m_proposalWidget->isVisible())
+            m_proposalWidget->closeProposal();
         disconnect(m_proposalWidget, &QObject::destroyed,
                    this, &CodeAssistantPrivate::finalizeProposal);
         finalizeProposal();