bug#39100: EBDB feature request: undo

[Jorge P. de Morais Neto]

Hi.  It would be nice to have undo in EBDB.  So far I have never
suffered much for the lack of undo (it is only an inconvenience) and of
course I leave it up to you to prioritize this feature, but it would be
useful, though clearly not as important as e. g. better compatibility
(import/export) with other formats.

Regards
-- 
- <https://jorgemorais.gitlab.io/justice-for-rms/>
- I am Brazilian.  I hope my English is correct and I welcome feedback.
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