T46 fills all unset blf's

[KristianMedK]

There is autoprovisioning, but i've checked the configuration we're sending, and it doesn't contain blf's, which does not have a value, and there has been no code changes to the script generating the configuration file, between the error being reported, and debugging the issue.

I haven't been able to reproduce it on my own T46 neither.

This isn't a known to happen, rarely, on any yealink phones ?