Just tagged and uploaded the 47.2 dot release of GNOME Maps.
This release contains a bugfix, for opening geo: URIs without a zoom level parameter, where it should now use the last used zoom level instead of reverting back to 0 (this regressed after adding support for the zoom level parameter in the URI). And there's also a couple of translation updates.
https://download.gnome.org/sources/gnome-maps/47/
It's also available in the stable Flatpak on Flathub