backup! enhancement request / proposal

[newbie-02]

I didn't find anything about backupping in AsciidocFX than requesting it at 'AsciidocFx 1.5.6 truncated my adoc file # 334'.
I managed to loose some data when something hit my keyboard and typed endless '+++++++++++++++++++++++++++++++++++++++++...', and can think of plenty situations where e.g. accidentally marking an area and deleting when typing together with AsciidocFX's 'auto save on leaving window' could cause harmful and - AFAIK - unrecoverable data loss.

Proposal: automatically create backup files on every write, mark them with date and time, and always keep one from the last 15 minutes, up to three for every last hour, up to three for every last day, ( up to three for every last week, up to three for every last month. ) Make it optional and on by default.

[rahmanusta]

Thanks for the feature request. For more features it requires more sponsors https://opencollective.com/asciidocfx