+## T150-tagging.sh is failing with Xapian 1.4.6
+
+This is (probably) a bug in this point release of Xapian, should be
+fixed in 1.4.7. Try reverting Xapian commit
+`093999529acc2f86900d91fed0c7f7af301ab94a`, e.g. with the following
+patch.
+
+[[!format text """
+index 80e578b85..a47f14a68 100644
+--- a/xapian-core/backends/glass/glass_postlist.cc
++++ b/xapian-core/backends/glass/glass_postlist.cc
+@@ -759,7 +759,7 @@ GlassPostList::open_nearby_postlist(const std::string & term_,
+ (void)need_pos;
+ if (term_.empty())
+ RETURN(NULL);
+- if (!this_db.get() || this_db->postlist_table.is_modified())
++ if (!this_db.get() || this_db->postlist_table.is_writable())
+ RETURN(NULL);
+ RETURN(new GlassPostList(this_db, term_, cursor->clone()));
+ }
+"""]]