Web3 toHex bug

Steps to reproduce

1. yarn
2. yarn generate
3. cd dist
4. python -m SimpleHTTPServer 8088
5. open up js console in localhost:8088 and notice that there are incorrect toHex results

n1 7120861356467848435263064379192047478074060781135320967663101236819528304084
toX 0x2266626534336333366138306533366437633763353834643466386633373539666235316630643636303635643861323237623638386431323438386335643422

if you do yarn dev -o you will see that toHex is working as expected

n1 7120861356467848435263064379192047478074060781135320967663101236819528304084
toX 0xfbe43c36a80e36d7c7c584d4f8f3759fb51f0d66065d8a227b688d12488c5d4