ID 251125 - Replaced quicktime files are not updated in Timeline viewer unlesss Nuke Studio is re-started

Problem summary
Replaced quicktime files are not updated in Timeline viewer unless
Nuke Studio is re-started.

Customer reported version
nuke.10.5v1

Customer reported platform
10.09

Steps to reproduce

-In Nuke, Render a ColorWheel to quicktime in a folder testA and call it test.mov
-Render a CheckerBoard to quicktime a folder called testB, using same name test.mov

-Open NukeStudio, import the quicktime in folder testA, drag to timeline and see ColorWheel displayed
-Save the project
-On disc, MOVE the CheckerBoard test.mov from folder testB to folder testA and hit Replace to over-write the file
-Note, in NukeStudio, the Colorwheel is still displayed
-Rt-click timeline and choose Clip> Refresh Clip
-The clip bin Thumbnail updates to CheckerBoard, but the timeline Thumbnail, Sequence viewer and Sequence do not update
-Try to update with Cache> Clear Playback Cache,  does not update
-Save project and re-open
-All displays have updated to the new Checkerboard test.mov

Workaround
After overwriting quicktime files, close and reopen project to update all displays

Reproduced by support
9.0v1-10.5v1
MacOS 10.10.11

Expected behaviour
Re-rendered quicktime file should be updated in Timeline with either Clip>Refresh Clip or Cache> Clear Playback Cache

Actual behaviour
Re-rendered quicktime clips do not update in Timeline unless you save and re-open the project