Add release note about 'set active editor' bug fix

See #746.

README.md

@@ -2,8 +2,8 @@
 **Contributors:** fusionengineering, mattheu, danielbachhuber, zebulonj, goldenapples, jitendraharpalani, sanchothefat, bfintal, davisshaver, garyj, mte90, fredserva, khromov, bronsonquick, dashaluna, mehigh, sc0ttkclark, kraftner, pravdomil  
 **Tags:** shortcodes  
 **Requires at least:** 4.5  
-**Tested up to:** 4.7.4  
-**Stable tag:** 0.7.2  
+**Tested up to:** 4.8.1  
+**Stable tag:** 0.7.3  
 **License:** GPLv2 or later  
 **License URI:** http://www.gnu.org/licenses/gpl-2.0.html  
 
@@ -82,6 +82,7 @@ We've removed the compatibility shim for the magical `content` attribute. If you
 * Bug fix: Fix bugs affecting multiple select fields (values could not be unset once set, and multiple default values couldn't be set).
 * Bug fix: Prevent encoded fields containing two percent characters from breaking.
 * Bug fix: Fix some issues where the media modal state was not reset properly if a shortcode was closed without saving.
+* Bug fix: Support cases where there are multiple WP_Editor instances on a page, and make sure that the shortcode being edited is sent to the correct page.
 * Enhancement: When post_select field is selecting from more than one post type, show the post type alongside the post name for easier selection.
 * Enhancement: Show attachment thumbnails for any attachment type, not just images.
 * Enhancement: Add more helpful error messages if no shortcodes with Shortcake UI are registered.

readme.txt

@@ -74,6 +74,7 @@ We've removed the compatibility shim for the magical `content` attribute. If you
 * Bug fix: Fix bugs affecting multiple select fields (values could not be unset once set, and multiple default values couldn't be set).
 * Bug fix: Prevent encoded fields containing two percent characters from breaking.
 * Bug fix: Fix some issues where the media modal state was not reset properly if a shortcode was closed without saving.
+* Bug fix: Support cases where there are multiple WP_Editor instances on a page, and make sure that the shortcode being edited is sent to the correct page.
 * Enhancement: When post_select field is selecting from more than one post type, show the post type alongside the post name for easier selection.
 * Enhancement: Show attachment thumbnails for any attachment type, not just images.
 * Enhancement: Add more helpful error messages if no shortcodes with Shortcake UI are registered.