Fix #10561 - Fix pdb behavior. Delete the breakpoints by breakpoint number.
Handle multiple breakpoints at same line. Update docs/test.
Patch by Xavier de Gaye.
diff --git a/Misc/NEWS b/Misc/NEWS
index 79171a5..71cbc32 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -49,6 +49,8 @@
 - Issue #10242: Fixed implementation of unittest.ItemsEqual and gave it
   a new more informative name, unittest.CountEqual.
 
+- Issue #10561: In pdb, clear the breakpoints by the breakpoint number.
+
 - Issue #2986: difflib.SequenceMatcher gets a new parameter, autojunk, which
   can be set to False to turn off the previously undocumented 'popularity'
   heuristic. Patch by Terry Reedy and Eli Bendersky.