At most 1 dep in depMap

[alexisvincent]

Trace API only keeps the last imported module in System.loads.*.depMap.

So for instance

import a from './a.js'
import b from './b.js'

has a depMap of

{ "./b.js" : "https://localhost:3000/app/b.js" }

while

import b from './b.js'
import a from './a.js'

has a depMap of

{ "./a.js" : "https://localhost:3000/app/a.js" }

[guybedford]

Fixed and released in 1.2.2 and SystemJS 0.20.9.