do not count "\n" as part of indent

python/src/com/jetbrains/python/editor/PythonCopyPasteProcessor.java

@@ -42,7 +42,7 @@ public class PythonCopyPasteProcessor implements CopyPastePreProcessor {
       CodeStyleSettingsManager.getSettings(project).useTabCharacter(PythonFileType.INSTANCE);
     CharFilter NOT_INDENT_FILTER = new CharFilter() {
       public boolean accept(char ch) {
-        return useTabs? ch != '\t' : !Character.isWhitespace(ch);
+        return useTabs? ch != '\t' : ch != ' ';
       }
     };
     final CaretModel caretModel = editor.getCaretModel();

python/testData/copyPaste/Dictionary.after.py

@@ -0,0 +1,7 @@
+a = 1
+
+d = {
+    'a': 1,
+}
+
+b = 2

python/testData/copyPaste/Dictionary.dst.py

@@ -0,0 +1,3 @@
+a = 1
+<caret>
+b = 2

python/testData/copyPaste/Dictionary.src.py

@@ -0,0 +1,5 @@
+<caret><selection>
+d = {
+    'a': 1,
+}
+</selection>

python/testSrc/com/jetbrains/python/PyCopyPasteTest.java

@@ -269,6 +269,10 @@ public class PyCopyPasteTest extends PyTestCase {
     doTest();
   }
 
+  public void testDictionary() {    //PY-8875
+    doTest();
+  }
+
   public void testIndentTab() {
     doTestTabs();
   }