Comment 20 for bug 1916250

I followed the test case on a focal system whose sources.list file I changed to hirsute and had no issues.

Preparing to unpack .../8-gir1.2-signon-2.0_2.1-3ubuntu0.21.04_amd64.deb ...
Unpacking gir1.2-signon-2.0:amd64 (2.1-3ubuntu0.21.04) ...
Replacing files in old package gir1.2-signon-1.0 (1.14+17.04.20161117-0ubuntu5) ...
Preparing to unpack .../9-libsignon-glib-dev_2.1-3ubuntu0.21.04_amd64.deb ...
Unpacking libsignon-glib-dev:amd64 (2.1-3ubuntu0.21.04) over (1.14+17.04.20161117-0ubuntu5) ...
Setting up libtirpc-common (1.3.1-1build1) ...
Setting up libsepol1-dev:amd64 (3.1-1ubuntu1) ...
Setting up libffi8ubuntu1:amd64 (3.4~20200819gead65ca871-0ubuntu5) ...
Setting up libfakeroot:amd64 (1.25.3-1.1ubuntu2) ...
Setting up fakeroot (1.25.3-1.1ubuntu2) ...
Setting up rpcsvc-proto (1.4.2-0ubuntu4) ...
Setting up libc-dev-bin (2.33-0ubuntu5) ...
Setting up libtirpc3:amd64 (1.3.1-1build1) ...
Setting up libselinux1-dev:amd64 (3.1-3build1) ...
Setting up libglib2.0-0:amd64 (2.68.1-1~ubuntu21.04.1) ...
No schema files found: doing nothing.
Setting up libglib2.0-bin (2.68.1-1~ubuntu21.04.1) ...
Setting up libsignon-glib2:amd64 (2.1-3ubuntu0.21.04) ...
Setting up libtirpc-dev:amd64 (1.3.1-1build1) ...
Setting up libnsl2:amd64 (1.3.0-0ubuntu3) ...
Setting up libgirepository-1.0-1:amd64 (1.66.1-1build1) ...
Setting up libglib2.0-dev-bin (2.68.1-1~ubuntu21.04.1) ...
Setting up gir1.2-glib-2.0:amd64 (1.66.1-1build1) ...
Setting up libnsl-dev:amd64 (1.3.0-0ubuntu3) ...
Setting up gir1.2-signon-2.0:amd64 (2.1-3ubuntu0.21.04) ...
Setting up libc6-dev:amd64 (2.33-0ubuntu5) ...
Setting up libmount-dev:amd64 (2.36.1-7ubuntu2) ...
Setting up libsignon-glib-dev:amd64 (2.1-3ubuntu0.21.04) ...
Setting up libglib2.0-dev:amd64 (2.68.1-1~ubuntu21.04.1) ...
Processing triggers for libc-bin (2.33-0ubuntu5) ...