YAML parsing bug in Ruby 1.9.3?

gistfile1.txt

YAML.parse(BELOW) fails, I believe due to the shipCompany line below which contains a single backtick.

```
--- !ruby/object:Delayed::PerformableMethod 
args: []

method_name: :push_to_wh
object: !ruby/ActiveRecord:Cart 
  attributes: 
    split_to: 
    split_from: 
    promotion_id: 
    ship_cost: 7.98
    merch_total: 39.82
    auth_type: authorize.net
    combined_into_id: 
    fedex_callback: appserver4
    auth_code: "4298621621"
    updated_at: 2012-04-09 16:29:55 Z
    id: 173550
    confirmation_sent: false
    discount: 0.0
    created_at: 2011-01-18 21:25:30 Z
    gateway_callback: 
      :company: ""
      :ccvResponse: M
      :tranType: auth_capture
      :responseReasonText: This transaction has been approved.
      :shipCity: Spanish Fork
      :country: US
      :email: [email protected]
      :tax: ""
      :responseSubcode: 1
      :cavvResponse: ""
      :customerId: "149958"
      :shipZip: "84660"
      :freight: ""
      :responseReasonCode: 1
      :shipState: UT
      :phone: 801-319-2093
      :fax: ""
      :zip: "84660"
      :taxExempt: ""
      :authCode: "222735"
      :method: CC
      :shipFirstName: Foo
      :duty: ""
      :address: 123 Main St
      :city: Spanish Fork
      :transactionId: "4298621621"
      :poNumber: ""
      :avsResponse: Y
      :responseCode: 1
      :firstName: Foo
      :shipLastName: Bar
      :shipCompany: `
      :lastName: Bar
      :md5Hash: 9E4D266F12DAF400326680D1A53A9387
      :invoiceNumber: "173550"
      :shipAddress: 123 Main St
      :amount: "39.82"
      :state: UT
      :description: ""
      :shipCountry: ""
    payment_status: authorized
    purchase_date: 2012-04-09
    order_status: "10"
    state: ordered
    gateway_processing_status: 2005
    gst: 
    tracking_number: 
    hst: 
    combined_from_id: 
    user_id: 149958
    duty: 
    pst:
```

I've had a similar issue and haven't been able to figure it out. I believe mine had to do with a single <.