lib: check for writable db in n_m_tags_maildir_flags

The database needs to be writable because the list of stored file
names will change in general.

2 files changed, 4 insertions, 1 deletions

diff --git a/lib/message.cc b/lib/message.cc
index e2069123..1c87f8c0 100644
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -2039,6 +2039,10 @@ notmuch_message_tags_to_maildir_flags (notmuch_message_t *message)
     char *to_set, *to_clear;
     notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
 
+    status = _notmuch_database_ensure_writable (message->notmuch);
+    if (status)
+	return status;
+
     _get_maildir_flag_actions (message, &to_set, &to_clear);
 
     for (filenames = notmuch_message_get_filenames (message);
diff --git a/test/T566-lib-message.sh b/test/T566-lib-message.sh
index 87e70441..511d56ca 100755
--- a/test/T566-lib-message.sh
+++ b/test/T566-lib-message.sh
@@ -375,7 +375,6 @@ EOF
 test_expect_equal_file EXPECTED OUTPUT
 
 test_begin_subtest "Handle converting tags to maildir flags with closed db"
-test_subtest_known_broken
 cat c_head - c_tail <<'EOF' | test_C ${MAIL_DIR}
     {
 	notmuch_status_t status;