templates fail to replace some math values

[yourhead]

complex set of requirements

[yourhead]

Requirements:

• A child-stack created with Add-Type
• A math value
• The template using the math value is in a css file with each scope

creating the same stack from the library works other types of values work templates in html work

[yourhead]

more interesting things:

• image transforms failing to replace in similar ways

[yourhead]

the issue is that there is no initial call to populate. in this particular path the population is lazy. the default value for a math property relies on the first population. the first population does occur before the inner content is rendered. this happens at the first call to fetch the template. this happens just below the call to render the css. moving the template fetch in front of the css render ensures there will always be at least one populate before the first css render.

[yourhead]

in beta 21