Added feature of network disabling is nowhere documented. This small "feature" without documentation cost me a lot of time. https://git.yoctoproject.org/poky/commit/bitbake/bin/bitbake-worker?id=607f7b28443ec2c1f95f7c8eb7193b1159d29fc0
Submitted a patch for the BitBake manual to document this: https://lists.openembedded.org/g/bitbake-devel/message/14826 So far, this was only documented on https://docs.yoctoproject.org/migration-guides/migration-4.0.html#fetching-changes . Thanks for reporting this!
Merged the change in BitBake's manual: https://git.openembedded.org/bitbake/commit/?id=6abdc81dec06a362bfbcc06d69b90b96bd9bef01 The bug is fixed!