Improve copy/paste in bib merge with consistent MARC breaker delimiters

[Bill Erickson]

Evergreen 3.2+

In the web staff bib record merge UI, users have the option to edit the lead MARC record. Often, staff need to copy values from a subordinate record into the lead record. For users of the flat text editor, this could be improved by making the read-only view of the subordinate records use the same subfield delimiter as the flat text editor.

The read-only breaker view uses the default double-daggers, while the flat text editor uses the '$' character. I propose the read-only breaker view also use the '$' character so entire rows of content may be copy/pasted into the lead record without modification.

Branch en route.

[Bill Erickson (berick)]

Fix pushed:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1848778-marc-html-flat-text-compat

[Galen Charlton (gmc)]

Tested and works for me. I've pushed a signoff branch to user/gmcharlt/lp1848778_signoff and enhanced the commit message to add a test plan and note that it fixes a similar issue with editing Z39.50 records to overlay way.

[Galen Charlton (gmc)]

Pushed to master, rel_3_4, and rel_3_3. Thanks, Bill!