Fixes crash

app/src/main/java/net/pokeranalytics/android/model/migrations/Patcher.kt

@@ -16,6 +16,7 @@ class Patcher {
 		fun patchAll(context: Context) {
 			patchMissingTransactionTypes(context)
 
+			patchSessionSet()
 
 			Preferences.executeOnce(Preferences.Keys.PATCH_SESSION_SETS, context) {
 				patchSessionSet()
@@ -130,7 +131,7 @@ class Patcher {
 
 			realm.executeTransaction {
 				realm.where(SessionSet::class.java).findAll().deleteAllFromRealm()
-				val sessions = realm.where(Session::class.java).findAll()
+				val sessions = realm.where(Session::class.java).isNotNull("startDate").isNotNull("endDate").findAll()
 				sessions.forEach { session ->
 					SessionSetManager.updateTimeline(session)
 				}