What's new in notmuch 0.26.2
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 will be fixed in Xapian 1.4.6.
Make thread indexing more robust against reference loops
Choose a thread root by date in case of reference loops. Fix a
related abort in `notmuch show`.
What is notmuch
Notmuch is a system for indexing, searching, reading, and tagging
large collections of email messages in maildir or mh format. It uses
the Xapian library to provide fast, full-text search with a convenient