diff --git a/app/src/protyle/toolbar/index.ts b/app/src/protyle/toolbar/index.ts
index 7ee7ef4cc..b9df09475 100644
--- a/app/src/protyle/toolbar/index.ts
+++ b/app/src/protyle/toolbar/index.ts
@@ -1105,8 +1105,8 @@ export class Toolbar {
                     if (!html.endsWith("\n</div>")) {
                         html = `${html}\n</div>`;
                     }
-                    // 需移除换行 https://github.com/siyuan-note/siyuan/issues/7921
-                    html = html.replace(/\n\n/g, "\n");
+                    // 需移除连续的换行 (空行) https://github.com/siyuan-note/siyuan/issues/7921
+                    html = html.replace(/\n+/g, "\n");
                 }
                 renderElement.querySelector("protyle-html").setAttribute("data-content", Lute.EscapeHTMLStr(html));
             } else if (isInlineMemo) {
diff --git a/kernel/model/file.go b/kernel/model/file.go
index 50c08ce8a..5f6d1d718 100644
--- a/kernel/model/file.go
+++ b/kernel/model/file.go
@@ -147,7 +147,7 @@ func SearchDocsByKeyword(keyword string, flashcard bool) (ret []map[string]strin
 	var deckBlockIDs []string
 	if flashcard {
 		deck := Decks[builtinDeckID]
-		if nil != deck {
+		if nil == deck {
 			return
 		}
 		deckBlockIDs = deck.GetBlockIDs()
@@ -232,7 +232,7 @@ func ListDocTree(boxID, path string, sortMode int, flashcard bool, maxListCount
 	var deckBlockIDs []string
 	if flashcard {
 		deck := Decks[builtinDeckID]
-		if nil != deck {
+		if nil == deck {
 			return
 		}
 		deckBlockIDs = deck.GetBlockIDs()