Peter Krempa 7526a71586 conf: Keep 'readonly' property when resetting disk source
The property is necessary also for the disk using the source (e.g. cdrom)
which needs to be kept readonly.

Commit '462c4b66' was a bit too aggressive in this aspect, since the
readonly flag is set only while parsing.
2017-04-13 12:12:54 +02:00
..