Explicitly setting the keychain-access-groups. In these groups Keychain

items can be shared. If left empty, Xcode inserts the AppID prefix with
a wildcard.

MacPass/MacPass.entitlements

@@ -7,6 +7,8 @@
 	<key>com.apple.security.cs.disable-library-validation</key>
 	<true/>
 	<key>keychain-access-groups</key>
-	<array/>
+  <array>
+    <string>$(AppIdentifierPrefix)$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	</array>
 </dict>
 </plist>