If readout molecule is passed via --plot option which is duplicate then we get Assertion Error

[hrani]

E.g
python findSim.py Wei-Lun2015_Fig4C_BDNF.json -m Level1_HT_model.json --map map_ht.json --plot aTrKB.conc protein.conc

protein molecule already exist in Readout, if passed again with --plot option we get
rd.displayPlots( exptFile, model._tempModelLookup, stims, hideSubplots, expt.exptType, bigFont = bigFont )
File "findSim.py", line 442, in displayPlots
assert( numPts > 0 )
AssertionError