Entering Voskhod 2

Lukas, my six year old son asked me yesterday, how the cosmonauts entered
the Voshkhod 2 spacecraft, when the inflatable airlock was in front
of the hatch. Was it constructed so they could enter through the
folded airlock or was the airlock bolted to the spacecraft after the
crew had entered?
As I had no definitve answer, I'll pass this question to you.

Harald