Occur-mode multi-line match property gap filling

When an occur-mode regexp matches across multiple lines, the spacing
prefixes inserted between each did not have the `occur-target`
property which is essential for jumping to the corresponding place in
the target buffer.  This prevented next-error and previous-error
from working.

* lisp/replace.el (occur-engine): Put the `occur-target` property on
the continuation prefix to avoid the gap.

1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/replace.el b/lisp/replace.el
index d0c63669159..148b7ce48b1 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -2089,8 +2089,10 @@ See also `multi-occur'."
                                 "\n"
                                 (if prefix-face
                                     (propertize
-                                     "\n       :" 'font-lock-face prefix-face)
-                                  "\n       :")
+                                     "\n       :" 'font-lock-face prefix-face
+                                     'occur-target markers)
+                                  (propertize
+                                   "\n       :" 'occur-target markers))
                                 ;; Add mouse face in one section to
                                 ;; ensure the prefix and the string
                                 ;; get a contiguous highlight.