jabref: Changes in entry preview are not saved

JabRef 5.1–2020-05-04–b5599c9 Linux 4.9.0-12-amd64 amd64 Java 14.0.1

Changes in the entry preview format are accounted for only after restarting.

Note 1: may seem similar to issue #5464, but the present issue is about the content of the preview. Note 2: issue is present with “Show preview as tab in entry editor” checked or unchecked.

Steps to reproduce the behavior:

1. Create a file with the following entry and save it

@Article{MyKey,
  author    = {Author1, Surname1 and Author2 Surname2},
  journal   = {The Journal title},
  title     = {The title of the article},
  year      = {2020},
  number    = {12},
  pages     = {1-100},
  volume    = {15},
 }

1. Go to Options -> Preferences -> Entry preview
2. Select “Preview” in the column “Selected”
3. Click on the Edit tab
4. Change \begin{journal} <em>\format[HTMLChars]{\journal}, </em>\end{journal} into \begin{journal} <em>\format[HTMLChars]{\journal},HereIsMyChange </em>\end{journal}
5. Go to the preview Tab. ==> The preview is updated accordingly.
6. Click on save
7. Edit the entry The preview shows: HereIsMyChange is not displayed ==> The preview is NOT updated.
8. Close and reopen JabRef
9. Edit the entry The preview shows: HereIsMyChange is displayed ==> The preview is updated NOW.