I'd shy away from editing the old transaction as it discards the timeline and doesn't reflect reality. You have transactions on your CC that your accounts don't correctly reflect! In this instance it was only a few days, but sometimes these things take weeks, or months, for the cycle to be completed. It's a slippery slope.
I thought what you did looks great, excepting that for the final/4th entry. My solution would be to book the second transaction directly against expenses, and forgo the 4th entry but, if I have your problem understood, you want a report on reimbursements. Your mileage may vary but, rather than creating a special account and virtual transactions, I start tagging things like that, and run reports against the tags. eg: 2019-04-16 * "Insurance" "Medical Expense reimbursement for Root Canal" *#reimbursment #<insurer-name>* *Expenses:Medical:Dental* 1000.00 CAD Assets:Chequing -- You received this message because you are subscribed to the Google Groups "Beancount" group. To unsubscribe from this group and stop receiving emails from it, send an email to beancount+unsubscr...@googlegroups.com. To post to this group, send email to beancount@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beancount/f6521bde-e181-49b9-8c89-bed8c42f06e2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.