Switching to bond and using autoinstall leads to Mirror/lookup FAIL

[DN]

I'm using PXE with subiquity and autoinstall (no-cloud). The user-data/autoinstall script also setups a LAG/bond. Subiquity reports `finish: subiquity/Mirror/lookup: FAIL: cancelled` this stops the installation process. The network configuration is applied successfully, just before.

After the installation is stoped I verified if the network configuration was working while the installer is still loaded and it is. My guess is, that while the configuration is switched to LAG/bond the connection is lost for a brief moment until reconfigured, but subiquity tries to lookup the mirrors at that exact moment of reconfiguration/waiting for the LAG/bond to be up.

If I do the same configuration manual in the UI, it works fine.
I also tried the refresh-installer with channel edge.

Is there any simple/easy way to introduce for me a tiny delay/wait until the LAG is configured?