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this package seems to have new commits in its VCS but has
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Here are the relevant commit logs:
commit 342f2828551755821bc74f15ffc7f654fba364cf
Author: Laurent Bigonville <bigon@debian.org>
Date: Wed Dec 16 14:11:55 2020 +0100
librsvg2-dev.in: Bump librsvg2-dev Build-dependency to 2.45.5
gnome-games needs Rsvg.Length that has been introduced in that version