Variable Property Name: using asterisks in the name is broken

[anentropic]

https://github.com/apiaryio/mson/blob/master/MSON%20Specification.md#322-variable-property-name

*rel (Custom String)* (object)

(where the (Custom String) type annotation is optional)

In my project we have a case where we want to use the literal string value ** as a Variable Property Name

As you can expect, this case is broken 😄

https://github.com/apiaryio/mson/blob/master/MSON%20Specification.md#343-variable-value
The spec appears to say that asterisks in *rel (Custom String)* (object) are Markdown italics

In which case it should be possible to escape the asterisks in my example value using Markdown convention: *\*\**

This gives:
'variable named property' must be string or its sub-type
'semantic issue' error in Apiary web editor

No escaping i.e. **** gives same error

Backticks *`**`* give no error but the variable property name is displayed as just ` (single backtick, i.e. not ** that we were aiming for)

Adding the type annotation helps a bit:

*\*\* (string)* displays as ***
*** (string)* also displays as ***

but this still seems to be wrong, should be **

[anentropic]

Following up on the idea that these are syntactically defined using Markdown italics...

I found this works:

_\*\*_: my value (string)

[anentropic]

Related but different case

Trying to define a values list using comma-separated syntax
https://github.com/apiaryio/mson/blob/master/MSON%20Specification.md#341-value

When the list contains an item that is literal ** ...this is displayed as 'SAMPLE' data in the web UI

Escaping the asterisks doesn't help

eg

+ launched_editions: \*\*, uk, it, usa, ireland, sweden, denmark (array[string])

displays as:

and it is missing from the generated JSON output:

  "launched_editions": [
    "uk",
    "it",
    "usa",
    "ireland",
    "sweden",
    "denmark"
  ]

Backticks should be the answer here (?) but they don't help

+ launched_editions: `**`, uk, it, usa, ireland, sweden, denmark (array[string])

and

+ launched_editions: `\*\*`, uk, it, usa, ireland, sweden, denmark (array[string])

give exactly the same result as above.