marble-plugins lacks a dependency to libwlocate0

This bug was fixed in the package marble - 4:4.12.2-0ubuntu3

---------------
marble (4:4.12.2-0ubuntu3) trusty; urgency=medium

  * Add libwlocate0 as explicit dependency of marble-plugins. It is a
    runtime dependency that otherwise makes the WlocatePositionProviderPlugin
    fail to load. LP: #1284099
 -- Harald Sitter <email address hidden> Mon, 24 Feb 2014 14:32:54 +0100

same error in zesty:

$ marble
Ignoring to load the following file since it doesn't look like a valid Marble plugin: "/usr/lib/x86_64-linux-gnu/marble/plugins/libWlocatePositionProviderPlugin.so"
Reason: "Cannot load library /usr/lib/x86_64-linux-gnu/marble/plugins/libWlocatePositionProviderPlugin.so: (libwlocate.so: cannot open shared object file: No such file or directory)"

$ dpkg -S /usr/lib/x86_64-linux-gnu/marble/plugins/libWlocatePositionProviderPlugin.so
marble-plugins: /usr/lib/x86_64-linux-gnu/marble/plugins/libWlocatePositionProviderPlugin.so

$ dpkg -l marble\*
ii marble 4:16.12.3-0ubuntu amd64 globe and map widget
ii marble-data 4:16.12.3-0ubuntu all data files for Marble
ii marble-plugins 4:16.12.3-0ubuntu amd64 plugins for Marble

$ ldd /usr/lib/x86_64-linux-gnu/marble/plugins/libWlocatePositionProviderPlugin.so|grep not
        libwlocate.so => not found

$ apt-cache show marble-plugins
Package: marble-plugins
Priority: optional
Section: universe/misc
Installed-Size: 5674
Maintainer: Ubuntu Developers <email address hidden>
Original-Maintainer: Debian/Kubuntu Qt/KDE Maintainers <email address hidden>
Architecture: amd64
Source: marble
Version: 4:16.12.3-0ubuntu1
Depends: libastro1 (= 4:16.12.3-0ubuntu1), libc6 (>= 2.14), libgcc1 (>= 1:3.0), libgps22 (>= 3.3), libmarblewidget-qt5-26 (= 4:16.12.3-0ubuntu1), libphonon4qt5-4 (>= 4:4.8.0), libqt5core5a (>= 5.7.0), libqt5gui5 (>= 5.6.1~) | libqt5gui5-gles (>= 5.6.1~), libqt5network5 (>= 5.6.1~), libqt5positioning5 (>= 5.6.0), libqt5qml5 (>= 5.1.0), libqt5quick5 (>= 5.6.1) | libqt5quick5-gles (>= 5.6.1), libqt5serialport5 (>= 5.6.0), libqt5sql5 (>= 5.6.1~), libqt5svg5 (>= 5.6.0~beta), libqt5webkit5 (>= 5.6.0~rc), libqt5widgets5 (>= 5.6.1~), libqt5xml5 (>= 5.6.1~), libshp2 (>= 1.3.0), libstdc++6 (>= 5.2)
Filename: pool/universe/m/marble/marble-plugins_16.12.3-0ubuntu1_amd64.deb
Size: 1262506
MD5sum: 96a49c57f2819780a6dbb5fdc7bffbeb
SHA1: 7a38f06126f88fb7ca40778a40e674911f2df31e
SHA256: f9d43d73abe9d81de9cdedc46573ca88ea89bd60d8fafcda64d44bf2cb47c3ff
Description-en: plugins for Marble
 Marble is a generic geographical map widget and framework for KDE
 applications. The Marble widget shows the earth as a sphere but does not
 require hardware acceleration. A minimal set of geographical data is
 included, so it can be used without an internet connection.
 .
 This package contains various plugins for the Marble desktop globe. The Marble
 globe widget library may not be of much use if this package is not installed.
 .
 This package is part of the KDE education module.
Description-md5: 94cc6f96b770964058cd35411cc0d773
Homepage: http://edu.kde.org/
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Task: edubuntu-desktop-gnome