The X-VM-v5-data headers are not being decoded at all at present. Surprising that they ever worked.
The MIME encoding of these headers was introduced in rev. 453.6.16. But I don't see any decoding of them. Perhaps the decoding of the summary lines was done in an ad hoc way. Other data was never decoded.
Follow-up revisions in 453.6.23, 453.6.28, 610, 611, 789.1.x ("subject" branch) merged in 792, etc.
The X-VM-v5-data headers are not being decoded at all at present. Surprising that they ever worked.
The MIME encoding of these headers was introduced in rev. 453.6.16. But I don't see any decoding of them. Perhaps the decoding of the summary lines was done in an ad hoc way. Other data was never decoded.
Follow-up revisions in 453.6.23, 453.6.28, 610, 611, 789.1.x ("subject" branch) merged in 792, etc.