Comment 0 for bug 1692127

Steve brought up bug 1691983 and how it's duplicate signature is missing information. It contains:

package:shim-signed:1.27~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
Installing for x86_64-efi platform.
Installation finished. No error reported.
Running in non-interactive mode, doing nothing.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1

But is missing:

Setting up shim-signed (1.27~16.04.1+0.9+1474479173.6c180c6-1ubuntu1) ...
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
debconf: unable to initialize frontend: Passthrough
debconf: (Cannot connect to /tmp/aptdaemon-7jrqb_du/debconf.socket: Connection refused at (eval 18) line 3.)
debconf: falling back to frontend: Noninteractive

This is because of the following code in data/general-hooks/ubuntu.py:

145 PKG_MSGS = ('Authenticating', 'De-configuring', 'Examining',
146 'Installing ', 'Preparing', 'Processing triggers', 'Purging',
147 'Removing', 'Replaced', 'Replacing', 'Setting up',
148 'Unpacking', 'Would remove')
149 for line in termlog.split('\n'):
150 if line.startswith(PKG_MSGS):
151 dupe_sig = '%s\n' % line
152 continue

The shim-signed package prints a line starts with "Installing " and that matches PKG_MSGS so we reset the dupe_sig because that's a message we'd expect from a package manager.