BUG #13969: PostgreSQL 9.5.0-1 no longer available from apt.postgresql.org

The following bug has been logged on the website:

Bug reference: 13969
Logged by: Gaspare Boscarino
Email address: gboscarino(at)computer(dot)org
PostgreSQL version: 9.5.0
Operating system: Linux Ubuntu 14.04
Description:

Hello,

We completed the upgrade to 9.5.0 in the production environment a few days
ago. The following is the procedure that we have used to install the
PostgreSQL software:

deb 'http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main' >
/etc/apt/sources.list.d/pgdg.list
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo
apt-key add -
apt-get update
apt-get install -y --force-yes postgresql-9.5=9.5.0-1.pgdg14.04+2

We now need to create a new 9.5.0-1 instance but it seems that 9.5.0-1 has
been removed from the APT repository:

apt-get install -y --force-yes postgresql-9.5=9.5.0-1.pgdg14.04+2
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '9.5.0-1.pgdg14.04+2' for 'postgresql-9.5' was not found

Was the repository somehow compromised in the last few days? Could you
please advise on how to proceed?

Thank you.

Gaspare