Bug 470110

SUMMARY

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I noticed that file layers will not resize or keep the transform position when I either resize the document or export to a different size. There is a few ways to see this behaviour, I will list all below. 
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STEPS TO REPRODUCE


Case 1
1.  Drag and drop a new file layer in the canvas
2. File > export advanced> pick jpg or png
3.  in te resize tab put a lower pixel size
4. check the file layer remaining the same size but being cropped instead of scaling down

Case 2 
1.  Drag and drop a new file layer in the canvas
2. Add a transform mask to that file layer
3. move the image in a new position (try upper right corner of the canvas for example)
4. File > export advanced> pick jpg or png 
5.  in the resize tab put a lower pixel size (for example 1920*1080 down to 500*281, put a way lower size to see the problem better)
6. See how the file layer seem to keep the position but still a bigger size and is cropped outside the canvas

Case 3 
1.  Drag and drop a new file layer in the canvas
2. Add a transform mask to that file layer
3. move the image in a new position
4. image> scale Image to new size
5.  in te resize tab put a lower pixel size (for example 1920*1080 down to 500*281)
6. See how the file layer seem to keep the position but still a bigger size and is cropped outside the canvas>


OBSERVED RESULT
The image stays the same size and does not scale or move with the canvas.

EXPECTED RESULT
Image and transform mask to scale proportionally with the new size and keep the position within the canvas.

SOFTWARE/OS VERSIONS
Windows: 10

ADDITIONAL INFORMATION
Additional steps of CASE 3 I just discovered
7. Ctrl+z the scale change to the canvas you just made
8. See how the file layer with transform mask is not in the upper right corner anymore and you have to reposition it.

It seems the problem is related to both file layers not scaling and transform masks not keeping their position after a canvas resize.