From 5d25c4552d0031ceef032fd58932b6947d74cdf7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=B6ktu=C4=9F=20Karaka=C5=9Fl=C4=B1?=
 <20567087+goktug97@users.noreply.github.com>
Date: Fri, 5 Jun 2020 08:36:13 +0300
Subject: [PATCH] (internal): change `org-roam-db--update-tags` to only add
 non-nil tags (#759)

---
 org-roam-db.el | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/org-roam-db.el b/org-roam-db.el
index 471e4fe..4910103 100644
--- a/org-roam-db.el
+++ b/org-roam-db.el
@@ -332,8 +332,8 @@ connections, nil is returned."
 
 (defun org-roam-db--update-tags ()
   "Update the tags of the current buffer into the cache."
-  (let* ((file (file-truename (buffer-file-name)))
-         (tags (org-roam--extract-tags)))
+  (when-let ((file (file-truename (buffer-file-name)))
+             (tags (org-roam--extract-tags)))
     (org-roam-db-query [:delete :from tags
                         :where (= file $s1)]
                        file)