[Koha-bugs] [Bug 20685] Modify notice page for HOLD SLIP rendering incorrectly

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20685

--- Comment #1 from Jonathan Druart <jonathan.druart at bugs.koha-community.org> ---
Created attachment 75022
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=75022&action=edit
Bug 20685: Escape letter template content in textarea

Test plan:
enter the following text into the Email template for 'HOLD_SLIP'
in Home › Tools › Notices & Slips › Modify notice

<div style='max-width: 4in;'>
<h3><<borrowers.surname>>, <<borrowers.firstname>></h3><br />
<<borrowers.streetnumber>> <<borrowers.address>><br />
<<borrowers.address2>><br />
<<borrowers.city>>, <<borrowers.state>> <<borrowers.zipcode>><br />
<br />
<br />
<img
src="/cgi-bin/koha/svc/barcode?barcode=<<borrowers.cardnumber>>&type=Industrial2of5&notext=1">

Edit it again
Without this patch you will get:
<img
src="/cgi-bin/koha/svc/barcode?barcode=<<borrowers.cardnumber>>&type=Industrial2of5¬ext=1">

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