ID 232320 - planarTrack to Tracker to MatchMove-Transform does not evaluate correctly on script load

Problem summary
Values generated from a planarTracker sent through a spawned Tracker, in turn sent through to a spawned MatchMove transform evaluate as 0 on comp script load.

Customer reported version
nuke.10.0v3

Customer reported platform
n_a_windows

Steps to reproduce

Load attached script - planarTrack2Tracker2MatchMoveEvalFailOnLoad.nk

1) Load up the file scrub timeline

2) Double click ONLY "Transform_MatchMove1" and scrub the timeline,  

observe that it reports zero as the value across the frame range

3) Now Double click the Tracker6 and see the correct tracker values 

4) Double click the "Transform_MatchMove1" again

5) Scrub timeline and observe correct values are reported, 

it no longer reports zero as the value across the frame range

Workaround
Unknown. 

Reproduced by support
9.0v1-10.0v4 on MacOS 10.10.4 & Windows7

(7.0v1-8.0v6 needs further investigation, missing planarTracker knobs)

Expected behaviour
Values to be correctly propagated through to the linked transform on script load.

Actual behaviour
Linked transform reports 0 as value, until you double click the Tracker node.