Having harder and more ambitious ones in the mix is OK, but I suspect this
one is probably a bit too ambitious to be realistic for a student project
that lasts only 3 months.
This proposal is about a change that touches core parts of the system that
has the chance of inflicting permanent damage to end users' histories.
I'd have a hard time reviewing and convincing myself that the change is
good, if such a change were done by somebody new to the system, even if
the work were mentored very closely by one of our top 15 committers.