emacs-27 aff8bca: * lisp/replace.el (occur-engine-line): Revert part of fb16313025 (bug#39597)

[Juri Linkov]

branch: emacs-27
commit aff8bca77c0e32b7d7044dae73a2848f91d0e35b
Author: Juri Linkov <address@hidden>
Commit: Juri Linkov <address@hidden>

    * lisp/replace.el (occur-engine-line): Revert part of fb16313025 (bug#39597)
    
    ; Do not merge to master.
---
 lisp/replace.el | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lisp/replace.el b/lisp/replace.el
index a0b0506..491bf33 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -1937,8 +1937,10 @@ See also `multi-occur'."
       global-matches)))
 
 (defun occur-engine-line (beg end &optional keep-props)
-  (if (and keep-props font-lock-mode)
-      (font-lock-ensure beg end))
+  (if (and keep-props (if (boundp 'jit-lock-mode) jit-lock-mode)
+          (text-property-not-all beg end 'fontified t))
+      (if (fboundp 'jit-lock-fontify-now)
+         (jit-lock-fontify-now beg end)))
   (if (and keep-props (not (eq occur-excluded-properties t)))
       (let ((str (buffer-substring beg end)))
        (remove-list-of-text-properties