ID 396645 - Paint buffer resizes when applying a filter to an image imported through a projector

Problem summary
Paint buffer resizes when applying a filter to an image imported through a projector 

Customer reported version

Customer reported platform
n_a_linux

Steps to reproduce

1) Open Mari and the example head project

2) Go to the UV view, select the first patch and press F 

3) Go to the projectors palette and add a new projector

4) Scroll down to "Input File Path" and load an image

5) Click on Import

6) While the image is on the paint buffer and is not baked, add a Hue filter 

7) Make sure to apply the filter on the Current Painting and press Apply

result: the paint buffer is resizing to the bottom left corner

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Expected behaviour
The paint buffer should not be resizing

Actual behaviour

The paint buffer is resizing after the filter has been applied 

Workaround
Unknown

Reproduced by support

This bug has been reproduced in:
Mari 4.5v1 - CentOS 7 - Windows 10

Mari 3.4v4 - CentOS7  - Windows 10 - regression

Unable to reproduce bug in:
Mari 3.4v3 - CentOS 7 

Mari 3.4v4 - Windows 10 

Earliest version tested
3.4v3 - This issue no longer appears in this version and has regressed