Fixed error when desc() returns multiple results

tests/non_reg/test_sheerka_display.py

@@ -14,3 +14,41 @@ class TestSheerkaNonRegDisplay(TestUsingMemoryBasedSheerka):
 
         captured = capsys.readouterr()
         assert captured.out == "ReturnValue(who=evaluators.OneSuccess, status=True, value=(1001)one)\n"
+
+    def test_i_can_display_multiple_concepts_description(self, capsys):
+        init = [
+            "def concept foo as 1",
+            "def concept foo as 2",
+        ]
+        sheerka = self.init_scenario(init)
+        capsys.readouterr()
+        
+        sheerka.enable_process_return_values = True
+        sheerka.evaluate_user_input("desc(foo)")
+
+        captured = capsys.readouterr()
+        assert captured.out == """id        : 1001
+name      : foo
+key       : foo
+definition: None
+type      : None
+body      : 1
+where     : None
+pre       : None
+post      : None
+ret       : None
+vars      : []
+props     : {}
+id        : 1002
+name      : foo
+key       : foo
+definition: None
+type      : None
+body      : 2
+where     : None
+pre       : None
+post      : None
+ret       : None
+vars      : []
+props     : {}
+"""

tests/non_reg/test_sheerka_non_reg.py

@@ -1183,6 +1183,19 @@ as:
         assert sheerka.get_attr(res[0].body, sheerka.new("size")) == sheerka.new("little")
         assert sheerka.get_attr(res[0].body, sheerka.new("adjective")) == sheerka.new("beautiful")
 
+    def test_i_can_display_multiple_concepts_using_desc_command(self):
+        init = [
+            "def concept foo as 1",
+            "def concept foo as 2",
+        ]
+        sheerka = self.init_scenario(init)
+
+        res = sheerka.evaluate_user_input("desc(foo)")
+
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].body, BuiltinConcepts.TO_MULTI)
+
 
 class TestSheerkaNonRegFile(TestUsingFileBasedSheerka):
     def test_i_can_def_several_concepts(self):