#158 Mirroring drill file not supported ?

[HWe]

Version: 2.5.0
Hi, I am using gerbv to mirror my backside layout to create mirrored milling data for further processing with pcb2gcode.
Mirroring gerber layers and saving them is working.

1) Mirroring and translation of gerber layer is not working (translation is wrong). The view after translation is correct, but if I do "Save" and reopen the new file again, the translation is not what was shown before.

2) Mirroring of drilldata works in the view, but after save and reload, the data had not been mirrored.

Do I something wrong, or is this a bug.
Attached please find the files I had the problems with,

Thanks for your help.
Holger

[HWe]

Gerber