iOS App Store shows iCloud button instead of Install button -

when users had our ios 6 app installed on iphone, go app store reinstall our app, see icloud button instead of install button.

when push icloud button app store installs version of our app installed in past, instead of latest version. after installation icloud button changes update button offering update app latest version.

how can prevent behaviour, because user downloads our app twice? our app free, there no need install "previously purchased" version.

also if user presses update button fast, things screwed up. reason leads our app being unable save data documents folder.

this new behaviour. have never seen in past. got clue? name of our app rogerthat

thanks

i think issue caused if version set in itunes connect , version set in info.plist don't match up. example, we've seen issue when version in itunes connect set 1.01 , version in info.plist 1.0.1