save ipdb command line history in Ipython history

[alphaCTzo7G]

Currently, ipdb doesn't save the command line history, as a result, there is no way to retreive past commands entered in ipdb.

Ipython already supports history search. Since ipdb and Ipython are used together, perhaps, the ipdb commandline history can be saved along with the ipython commandline commands, and retreived and searched in a similar way?