Fix a bug in search (absolute amounts) and remove automatic dating for new fix operation

src/view/SearchPanel.cpp

@@ -139,6 +139,8 @@ void SearchPanel::OnButtonSearch(wxCommandEvent& event)
 	  delete amountFrom;
 	  return;
 	}
+
+      if (af < 0) af *= -1;
     }
 
   if (_amountTo->GetLineText(0) != wxT(""))
@@ -152,6 +154,8 @@ void SearchPanel::OnButtonSearch(wxCommandEvent& event)
 	  delete amountTo;
 	  return;
 	}
+
+      if (at < 0) at *= -1;
     }
 
   if (amountFrom && amountTo && af > at)