Allow to update suggestions through function if it failed before

cli/cmd/prompt.go

@@ -229,13 +229,13 @@ func (pc *PromptCompleter) updateSuggestionsThroughFunc(d prompt.Document, c *co
 	if pc.lastSuggestions == nil {
 		var err error
 		newSuggestions, err := fn()
+		if err != nil {
+			return prompt.FilterHasPrefix([]prompt.Suggest{}, d.GetWordBeforeCursor(), true)
+		}
 		pc.lastSuggestions = &suggestionTracker{
 			lastCommand:    c,
 			lastSuggestion: newSuggestions,
 		}
-		if err != nil {
-			return prompt.FilterHasPrefix(pc.lastSuggestions.lastSuggestion, d.GetWordBeforeCursor(), true)
-		}
 	}
 	return prompt.FilterHasPrefix(pc.lastSuggestions.lastSuggestion, d.GetWordBeforeCursor(), true)
 }