<copyright-year>undefined</copyright-year> written into chapter-processed book meta causing loading errors
Expected behaviour
No permissions are written into chapter-processed book meta if not provided by the user in the BCMS.
Current behaviour
The following is getting written into ALL chapter-procesed book AND the user can't try to write in AND save values to fix it to do testing:
<copyright-year>undefined</copyright-year><copyright-holder>undefined</copyright-holder>
Steps to reproduce
Muromonab-CD3.xml: STYLE ERROR.
copyright-year does not contain a valid year (Tagging Guidelines)
Try to go into the book Metadata modal to add real values, and you get this error:
Priority
Y - this is blocking our ability to finish testing - #870 (closed)