HTML API: Fix the position update after changing the modifiable text when length differs

There was an edge case detected for updating the text placed without the wrapping HTML tag with `set_modifiable_text`.

Props gziolo, jonsurrell.
Fixes #62241.


Built from https://develop.svn.wordpress.org/trunk@59250


git-svn-id: http://core.svn.wordpress.org/trunk@58642 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/html-api/class-wp-html-tag-processor.php

@@ -2459,7 +2459,7 @@ class WP_HTML_Tag_Processor {
 			}
 
 			// Accumulate shift of the given pointer within this function call.
-			if ( $diff->start <= $shift_this_point ) {
+			if ( $diff->start < $shift_this_point ) {
 				$accumulated_shift_for_given_point += $shift;
 			}
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-beta3-59249';
+$wp_version = '6.7-beta3-59250';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.