[TESTNET_BUG] trait_reference not supported as function parameter type

[friedger]

Describe the bug
It is not possible to call a function in the explorer that contains a parameter of trait_reference type

What version of Blockstack.js are you using?
stacks.js 1.0.0-beta.12
and master branch

Is the bug present in the Blockstack CLI, Gaia hub, Connect or Blockstack Browser?
Testnet explorer

To Reproduce
Steps to reproduce the behavior:

1. Go to https://testnet-explorer.blockstack.org/txid/ST3YPJ6BBCZCMH71TV8BK50YC6QJTWEGCNDFWEQ15.advent-calendar
2. Copy contract name
3. Navigate to sandbox -> contract call and past contract
4. try to call "open-door" with "2" and "ST12EY99GS4YKP0CP2CFW6SEPWQ2CGVRWK5GHKDRV.calendar-02"
5. See that connect shows an error

Expected behavior
Contract call should be executed

Additional context
Contract interface:
https://stacks-node-api.blockstack.org/v2/contracts/interface/ST3YPJ6BBCZCMH71TV8BK50YC6QJTWEGCNDFWEQ15/advent-calendar

Relevant code:
https://github.com/blockstack/blockstack.js/blob/86829fe5eadbbe3fe1345234567b1d10e88c1b5b/packages%2Ftransactions%2Fsrc%2Fcontract-abi.ts#L53