preview_pane patch of src/read_body.php has bug

Hello,
    I am running the squirrelmail 1.4.23, 20170203_0201-SVN
on a CentOS 7 linux system.
    I have found that the  plugin preview_pane V1.2 patch for
src/read_body.php
doesn't work properly.  If you DO NOT use the preview pane, you do not
see the following options at the top of your message any longer.

Message List|Unread|Delete   Previous|Next   Forward|Forward as
Attachment|Reply|Reply All

...hence you cannot reply to a message unless you use the preview_pane.

   Once I realized it was the preview_pane plugin causing it, I brought over
an old version of src/read_body.php  from squirrelmail-1.4.23,
20130620_0200-SVN
as a test, and all seems to worksfine.

  I was wondering if anyone is maintaining this plugin any longer.  I first
saw this commented on in 2014 in the archives but nothing since. Our
users are used to having this option.  Should I just run with the old
read_body.src ?
What will not work if I do?

Thank you for any insight you may have.

Aloha, Sharon Stahl

-- 

*=============================================================*
| UH/SOEST-Research Computer Fac  vox: (808) 956-2616         |
| 1680 East West Rd- POST820    email: [email protected] |
| Honolulu, Hi 96822              fax: (808) 956-9256         |
*=============================================================*



------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
-----
squirrelmail-plugins mailing list
Posting guidelines: http://squirrelmail.org/postingguidelines
List address: [email protected]
List archives: http://news.gmane.org/gmane.mail.squirrelmail.plugins
List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-plugins