Dear Maintainer,

   * What led up to the situation?

	Standard system upgrade; `apt upgrade` isn't working

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

	`apt upgrade` (specifically) fails

   * What was the outcome of this action?

	I realize this probalby looks boring and like user error - Bear with
	me a bit; I've been a `sid` user for 25+ years, so there's more to
	it than appears.

    > $ apt upgrade

	> Calculating upgrade... Error!
	> Some packages could not be installed. This may mean that you have
	> requested an impossible situation or if you are using the unstable
	> distribution that some required packages have not yet been created
	> or been moved out of Incoming.
	> The following information may help to resolve the situation:

	> Unsatisfied dependencies:
	>  libmarblewidget-qt6-28 : Depends: libastro1 (= 4:24.12.2-3) but
	>  4:22.12.3-2.1 is to be installed
	>   marble-plugins : Depends: libastro1 (= 4:24.12.2-3) but
	>   4:22.12.3-2.1 is to be installed
	>   Error: Unable to correct problems, you have held broken packages.

	NORMALLY, as a `sid` user, I'd just wait a day or so and everything
	sorts itself out. However, after "a long enough time" I start to
	think that it's less a problem with package- upstream, and the
	problem lies elsewhere, and start debugging...

	- Noteworthy is that `apt-mark showhold` returns _nothing_ as I'm not
	  holding any packages.
	- `apt-get upgrade` (ie. a slightly different commandline) has
	  absolutely no issues whatsoever.
	- If I `apt install marble-plugins`, `apt` was immediately able to
	  install/upgrade `marble-plugins.`

   * What outcome did you expect instead?

   I expected the usual apt ugprade experience.


Now then: I run ZFS on my Root filesystem - which means I've
snapshots of my full filesystem both pre- and post- upgrade, in spite of
the fact I've moved past the but I'm reporting.

So, if you want to puruse this issue, and obtain anything out of my bag
of holding (within the next 90 days of the filing of this bug), please
let me know.

To be fair *apt upgrade* is holding all packages that don't have
upgrades, i.e. it's not allowed to remove them.

APT's terminology isn't clear; keep, hold, protected all have double
meanings, and sometimes they mean the same thing. Like in dist-upgrade,
"held packages" refers to packages that were marked protected, but that
includes any command-line arguments, the properly held packages, and
even some random decisions the solver made it sometimes calls Protect()
on.

Please run apt upgrade -o Dir::Log::Solver=/tmp/bug-1098997.edsp or
similar and attach the file. This will generate a full dump of the
solver request, installed packages, and configured sources, such that
it can be piped into /usr/lib/apt/solvers/apt for reproducing.

I’ve attached a (gzipped) version of the requested log. (Gzipped due to size)