lsp-mode-hash-check.patch

diff -ruN old/lsp-mode.el new/lsp-mode.el
--- old/lsp-mode.el	2019-08-26 14:35:30.266776289 -0400
+++ new/lsp-mode.el	2019-08-26 14:38:35.298299110 -0400
@@ -3326,7 +3326,13 @@
 
 (defun lsp--annotate (item)
   "Annotate ITEM detail."
-  (-let (((&hash "detail" "kind" kind-index) (plist-get (text-properties-at 0 item) 'lsp-completion-item))
+  (-let (((&hash "detail" "kind" kind-index) 
+          (let ((h (plist-get (text-properties-at 0 item) 'lsp-completion-item)))
+            (if (not (hash-table-p h))
+                (let ((h (make-hash-table)))
+                  (puthash "detail" item h)
+                  h)
+              h)))
          kind)
     ;; We need check index before call `aref'.
     (when kind-index