getDataFromTree not correctly resetting context providers

[Torsten85]

Intended outcome:
When using getDataFromTree, the context providers should be correctly reset to their initial value before the final React.renderToString call is executed

Actual outcome:
Context providers hold their last set value

How to reproduce the issue:
https://github.com/Torsten85/apollo-getDataFromTree

this repo should log:

Render #1 <div>Initial: 1<div>Nested Initial: 2</div></div>
Render #2 <div>Initial: 1<div>Nested Initial: 2</div></div>
Render #3 <div>Initial: 1<div>Nested Initial: 2</div></div>

but actually logs:

Render #1 <div>Initial: 1<div>Nested Initial: 2</div></div>
Render #2 <div>Initial: 1<div>Nested Initial: 2</div></div>
Render #3 <div>Initial: 2<div>Nested Initial: 3</div></div>

Version

• apollo-client@2.3.5
• react-apollo@2.1.6