[__package_apk] fix / add support for @yrepo syntax

cdist/conf/type/__package_apk/explorer/state

@@ -27,6 +27,10 @@ else
    name="$__object_id"
 fi
 
+# Remove the @.. repo tag for finding out whether it is installed
+# f.i. pass@testing => pass
+name="$(echo "$name" | sed 's/@.*//')"
+
 if [ "$(apk list -I "$name")" ]; then
     echo present
 else

docs/changelog

@@ -1,6 +1,9 @@
 Changelog
 ---------
 
+next:
+	* Type __package_apk: Fix @repo handling in explorer (Nico Schottelius)
+
 5.0.1: 2019-05-09
 	* Documentation: Add 'Perils of CDIST_ORDER_DEPENDENCY' sub-section (Darko Poljak)
 	* Build: Clean and separate end user targets into Makefile and maintainer targets into build-helper (Darko Poljak)