Batch Print/Email with previous snapshots

[perry]

Version: 6.5.13
Form: Sales Order Entry > Processing > Batch Printing / Emailing > Invoice Batch Printing / Emailing

When selecting multiple snapshots of an invoice to be emailed, only the current snapshot is being attached.

To reproduce the issue on a 6.5.13 demo database
- start the form
- Edit setting -> untick current snapshot only
- choose an invoice with multiple snapshots
- select all snapshots and process (email)

for example, if invoice has 3 snapshots, you will receive 3 emails with correct subject (i.e. 0000123-1, 0000123-2, 0000123-3). However, the attachments are the same, i.e. always based on current snapshot (0000123-3).

Please advise if there is a work around.