[PATCH] NEWS: news item for mset fix

[David Bremner]

---
 NEWS | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/NEWS b/NEWS
index 39ce7707..05ecebaf 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,14 @@
+Notmuch 0.26.2 (UNRELEASED)
+===========================
+
+Library Changes
+---------------
+
+Work around Xapian bug with `get_mset(0,0, x)`. This causes aborts in
+`_notmuch_query_count_documents` on e.g. Fedora 28.  The underlying bug
+is fixed in Xapian commit f92e2a936c1592, and should be fixed in
+Xapian 1.4.6.
+
 Notmuch 0.26.1 (2018-04-02)
 ===========================
 
-- 
2.17.0