fix: prevent Citations UI glitching during streaming chats (#4897)

* fix: prevent Citations UI glitching during streaming chats

* replaced random keys with stable keys

* simplify citation glitch fix

* Remove unneeded memo()

* Simplify key logic

* Replace Boolean(source) with !!source

* change cohere to behave with citations like other models

---------

Co-authored-by: shatfield4 <seanhatfield5@gmail.com>
Co-authored-by: Timothy Carambat <rambat1010@gmail.com>
Co-authored-by: Marcello Fitton <macfittondev@gmail.com>

frontend/src/components/WorkspaceChat/ChatContainer/ChatHistory/Citation/index.jsx

@@ -1,5 +1,4 @@
-import { memo, useState } from "react";
-import { v4 } from "uuid";
+import { Fragment, useState } from "react";
 import { decode as HTMLDecode } from "he";
 import truncate from "truncate";
 import ModalWrapper from "@/components/ModalWrapper";
@@ -70,9 +69,9 @@ export default function Citations({ sources = [] }) {
       </button>
       {open && (
         <div className="flex flex-wrap flex-col items-start overflow-x-scroll no-scroll mt-1 ml-14 gap-y-2">
-          {combineLikeSources(sources).map((source) => (
+          {combineLikeSources(sources).map((source, idx) => (
             <Citation
-              key={v4()}
+              key={source.title || idx.toString()}
               source={source}
               onClick={() => setSelectedSource(source)}
               textSizeClass={textSizeClass}
@@ -90,7 +89,7 @@ export default function Citations({ sources = [] }) {
   );
 }
 
-const Citation = memo(({ source, onClick, textSizeClass }) => {
+const Citation = ({ source, onClick, textSizeClass }) => {
   const { title, references = 1 } = source;
   if (!title) return null;
   const chunkSourceInfo = parseChunkSource(source);
@@ -120,7 +119,7 @@ const Citation = memo(({ source, onClick, textSizeClass }) => {
       </div>
     </button>
   );
-});
+};
 
 function omitChunkHeader(text) {
   if (!text.includes("<document_metadata>")) return text;
@@ -132,7 +131,7 @@ function CitationDetailModal({ source, onClose }) {
   const { isUrl, text: webpageUrl, href: linkTo } = parseChunkSource(source);
 
   return (
-    <ModalWrapper isOpen={source}>
+    <ModalWrapper isOpen={!!source}>
       <div className="w-full max-w-2xl bg-theme-bg-secondary rounded-lg shadow border-2 border-theme-modal-border overflow-hidden">
         <div className="relative p-6 border-b rounded-t border-theme-modal-border">
           <div className="w-full flex gap-x-2 items-center">
@@ -175,8 +174,8 @@ function CitationDetailModal({ source, onClose }) {
         >
           <div className="py-7 px-9 space-y-2 flex-col">
             {chunks.map(({ text, score }, idx) => (
-              <>
-                <div key={idx} className="pt-6 text-white">
+              <Fragment key={idx}>
+                <div className="pt-6 text-white">
                   <div className="flex flex-col w-full justify-start pb-6 gap-y-1">
                     <p className="text-white whitespace-pre-line">
                       {HTMLDecode(omitChunkHeader(text))}
@@ -199,7 +198,7 @@ function CitationDetailModal({ source, onClose }) {
                 {idx !== chunks.length - 1 && (
                   <hr className="border-theme-modal-border" />
                 )}
-              </>
+              </Fragment>
             ))}
             <div className="mb-6"></div>
           </div>

frontend/src/utils/chat/index.js

@@ -112,7 +112,7 @@ export default function handleChat(
         updatedHistory = {
           ...existingHistory,
           content: existingHistory.content + textResponse,
-          sources,
+          ...(sources && sources.length > 0 ? { sources } : {}),
           error,
           closed: close,
           animate: !close,

server/utils/AiProviders/cohere/index.js

@@ -193,7 +193,7 @@ class CohereLLM {
 
             writeResponseChunk(response, {
               uuid,
-              sources,
+              sources: [],
               type: "textResponseChunk",
               textResponse: text,
               close: false,