Mini emoji helper shows as a small slice when there are no matching emojis

indra/newview/llpanelemojicomplete.cpp

@@ -260,6 +260,10 @@ BOOL LLFloaterEmojiComplete::handleKey(KEY key, MASK mask, BOOL called_from_pare
 void LLFloaterEmojiComplete::onOpen(const LLSD& key)
 {
 	mEmojiCtrl->setEmojiHint(key["hint"].asString());
+	if (0 == mEmojiCtrl->getEmojiCount())
+	{
+		LLEmojiHelper::instance().hideHelper();
+	}
 }
 
 BOOL LLFloaterEmojiComplete::postBuild()

indra/newview/llpanelemojicomplete.h

@@ -59,7 +59,8 @@ class LLPanelEmojiComplete : public LLUICtrl
 	void reshape(S32 width, S32 height, BOOL called_from_parent) override;
 
 public:
-	void setEmojiHint(const std::string& hint);
+	size_t getEmojiCount() const { return mEmojis.size(); }
+	void   setEmojiHint(const std::string& hint);
 protected:
 	size_t posToIndex(S32 x, S32 y) const;
 	void select(size_t emoji_idx);