Crash in Nearby page because of empty list

[maskaravivek]

Creating an issue from for easy tracking.

USER_COMMENT=
ANDROID_VERSION=6.0.1
APP_VERSION_NAME=2.4
BRAND=google
PHONE_MODEL=Nexus 5
CUSTOM_DATA=
STACK_TRACE=java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
at fr.free.nrw.commons.nearby.NearbyController.loadAttractionsFromLocationToBaseMarkerOptions(NearbyController.java:94)
at fr.free.nrw.commons.nearby.NearbyMapFragment.onCreate(NearbyMapFragment.java:58)
at android.support.v4.app.Fragment.performCreate(Fragment.java:2177)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1244)
at android.support.v4.app.FragmentTransition.addToFirstInLastOut(FragmentTransition.java:1080)
at android.support.v4.app.FragmentTransition.calculateFragments(FragmentTransition.java:971)
at android.support.v4.app.FragmentTransition.startTransitions(FragmentTransition.java:95)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2143)
at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2098)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2008)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:710)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[maskaravivek]

@tobias47n9e @misaochan Should we close this issue. #673 fixes the crash.

[tobias47n9e]

@maskaravivek Sounds good.