patch 8.1.1919: using window options when passing a buffer to popup_create()

Problem:    Using current window option values when passing a buffer to
            popup_create().
Solution:   Clear the window-local options. (closes #4857)

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1919,
 /**/
     1918,
 /**/