Looks like this conflicting file started shipping in an Ubuntu delta 1.4-0ubuntu1 in Quantal, and Debian never shipped it in gir1.2-signon-1.0 - only in gir1.2-signon-2.0. So this is an Ubuntu-specific problem.
Looks like this conflicting file started shipping in an Ubuntu delta 1.4-0ubuntu1 in Quantal, and Debian never shipped it in gir1.2-signon-1.0 - only in gir1.2-signon-2.0. So this is an Ubuntu-specific problem.