tails-bugs@ OpenPGP key missing encryption subkey

The tails-bugs@ OpenPGP key available from our website seems to be missing an encryption subkey. The key structure that I see for this key is:

pub   rsa4096 2013-07-24 [SC] [expires: 2024-01-06]
      1F56 EDD3 0741 0480 35DA  C1C5 EC57 B56E F0C4 3132
uid           [  undef ] Tails bug squad <tails-bugs@boum.org>
uid           [ unknown] Tails bug squad (schleuder list) <tails-bugs-owner@boum.org>
uid           [  undef ] Tails private user support <tails-support-private@boum.org>
uid           [ unknown] Tails bug squad (schleuder list) <tails-bugs-request@boum.org>

Maybe the encryption subkey was lost when the key was renewed?