Revert "Remove odd duplications"

This reverts commit 7065060.

CONTRIBUTING.md

@@ -46,7 +46,7 @@ Following that we'll tell you about how you can test your changes locally and th
     # If you missed the --recurse-submodules arg during clone or need to install the
     # submodule manually, then execute the following line:
     #
-    # git submodule update --init --recursive
+    # git submodule udate --init --recursive
 
     # ... Alternatively, if you would prefer a more manual method
     # Show all the available branches with a * beside your current one

autosklearn/pipeline/components/regression/gradient_boosting.py

@@ -130,6 +130,9 @@ def iterative_fit(self, X, y, n_iter=2, refit=False):
         if y.ndim == 2 and y.shape[1] == 1:
             y = y.flatten()
 
+        if y.ndim == 2 and y.shape[1] == 1:
+            y = y.flatten()
+
         self.estimator.fit(X, y)
 
         if (

autosklearn/pipeline/components/regression/random_forest.py

@@ -107,6 +107,9 @@ def iterative_fit(self, X, y, n_iter=1, refit=False):
         if y.ndim == 2 and y.shape[1] == 1:
             y = y.flatten()
 
+        if y.ndim == 2 and y.shape[1] == 1:
+            y = y.flatten()
+
         self.estimator.fit(X, y)
         return self