`--stim-assign` doesn't work
Raised in Q2A: https://opencarp.org/q2a/1081/intracellular-concentrations-reach-steady-state-ohara-model?show=1116#c1116
When I converted the O'Hara .model file to a .mmt file and did the simulation with Myokit I observed the same unstable behavior of the Na and K concentrations as in OpenCARP. However, when I manually added the stimulus current to the equation for diff_Ki the concentrations stabilized. So I think the problem is that in bench the stimulus current is not added properly to the diff_Ki equation. I didn't expect this, since in my command file I used
['--stim-assign', 'on', '--stim-species', 'Ki']
so I thought the stimulus would affect the change of Ki (and I checked it, the variable name is indeed Ki).