sagemath: fix doctest for ipython 9.12

Author: tornaria

srcpkgs/sagemath/patches/fix-doctest-ipython-9.12.patch

@@ -0,0 +1,12 @@
+diff --git a/src/sage/doctest/test.py b/src/sage/doctest/test.py
+index 8e7ecac8bbe..7831de313cc 100644
+--- a/src/sage/doctest/test.py
++++ b/src/sage/doctest/test.py
+@@ -469,6 +469,7 @@ Test the ``--debug`` option::
+         s...: b = 5
+         s...: a + b
+         8
++    ...
+     sage:
+     <BLANKLINE>
+     Returning to doctests...