ID 386772 - Left-click drag and dropping knob value creates expression link when it shouldn't

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Problem summary
Within Nuke, left-click drag and dropping a knob onto another node with the animation curve icon, cause them to be expression linked.
As the values are simply copied and not expression-linked with animation, there should be no link.

This issue is regressive with Nuke11.0v4

Customer reported version
nuke.11.2v3

Customer reported platform
centos7

Steps to reproduce

1) Open Nuke, create 2 Grade Nodes

2) Change the Multiply on the first Grade node to anything ( 0.5 for this test )

3) Using the animation curve icon, Left-Click drag and drop the icon into the second Grade node's Multiply knob


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Result: The nodes will be expression linked when there is no expression added.

Expected behaviour
The knob value should be copied with no expression linking.

Actual behaviour
Both nodes are expression linked without expressions.

Workaround
Copy and Paste the values between knobs manually.

Reproduced by support

This bug has been reproduced in:
Nuke11.3v3- Windows 7 - Mac10.13 - CentOS7
Nuke11.3v1 - Windows 7
Nuke11.2v1 - Windows 7
Nuke11.1v1 - Windows 7
Nuke11.0v4 - Windows 7 - Mac10.13 - CentOS7 - regression

Unable to reproduce the bug in:
Nuke11.0v3 - Windows 7 - Mac10.13 - CentOS7

Earliest version tested
- This issue no longer appears in this version and has regressed

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