Try fixing IllegalStateException for fragments in various Activities.

app/src/main/java/ml/docilealligator/infinityforreddit/activities/AccountPostsActivity.java

@@ -143,10 +143,12 @@ public class AccountPostsActivity extends BaseActivity implements SortTypeSelect
             mAccessToken = savedInstanceState.getString(ACCESS_TOKEN_STATE);
             mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
             isInLazyMode = savedInstanceState.getBoolean(IS_IN_LAZY_MODE_STATE);
-            mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
+
-            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_account_posts_activity, mFragment).commit();
             if (!mNullAccessToken && mAccessToken == null) {
                 getCurrentAccountAndInitializeFragment();
+            } else {
+                mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
+                getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_account_posts_activity, mFragment).commit();
             }
         } else {
             getCurrentAccountAndInitializeFragment();

app/src/main/java/ml/docilealligator/infinityforreddit/activities/FilteredThingActivity.java

@@ -159,12 +159,11 @@ public class FilteredThingActivity extends BaseActivity implements SortTypeSelec
             mAccessToken = savedInstanceState.getString(ACCESS_TOKEN_STATE);
             mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
 
-            mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
-            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_filtered_posts_activity, mFragment).commit();
-
             if (!mNullAccessToken && mAccessToken == null) {
                 getCurrentAccountAndBindView(filter);
             } else {
+                mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
+                getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_filtered_posts_activity, mFragment).commit();
                 bindView(filter, false);
             }
         } else {

app/src/main/java/ml/docilealligator/infinityforreddit/activities/SearchSubredditsResultActivity.java

@@ -114,6 +114,7 @@ public class SearchSubredditsResultActivity extends BaseActivity implements Acti
             mNullAccessToken = savedInstanceState.getBoolean(NULL_ACCESS_TOKEN_STATE);
             mAccessToken = savedInstanceState.getString(ACCESS_TOKEN_STATE);
             mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
+
             if (!mNullAccessToken && mAccessToken == null) {
                 getCurrentAccountAndInitializeFragment(query);
             } else {

app/src/main/java/ml/docilealligator/infinityforreddit/activities/SubredditSelectionActivity.java

@@ -133,12 +133,11 @@ public class SubredditSelectionActivity extends BaseActivity implements Activity
             mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
             mAccountProfileImageUrl = savedInstanceState.getString(ACCOUNT_PROFILE_IMAGE_URL);
 
-            mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
-            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_subreddit_selection_activity, mFragment).commit();
-
             if (!mNullAccessToken && mAccountName == null) {
                 getCurrentAccountAndBindView();
             } else {
+                mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE);
+                getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_subreddit_selection_activity, mFragment).commit();
                 bindView(false);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/activities/ViewMultiRedditDetailActivity.java

@@ -158,11 +158,11 @@ public class ViewMultiRedditDetailActivity extends BaseActivity implements SortT
             mAccountName = savedInstanceState.getString(ACCOUNT_NAME_STATE);
             isInLazyMode = savedInstanceState.getBoolean(IS_IN_LAZY_MODE_STATE);
 
-            mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE_KEY);
-            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_view_multi_reddit_detail_activity, mFragment).commit();
-
             if (!mNullAccessToken && mAccessToken == null) {
                 getCurrentAccountAndInitializeFragment();
+            } else {
+                mFragment = getSupportFragmentManager().getFragment(savedInstanceState, FRAGMENT_OUT_STATE_KEY);
+                getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_view_multi_reddit_detail_activity, mFragment).commit();
             }
         } else {
             getCurrentAccountAndInitializeFragment();