ID 357992 - Running "Export Selected" more than once to the same directory on OSX results in an error.

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Problem summary
Running "Export Selected" more than once to the same directory on OSX results in an error.

Customer reported version
modo.12.1v1

Customer reported platform
10.13

Steps to reproduce
1) Open Modo.
2) Hold "Ctrl" and click the cube to create a cube primitive.
3) Select Geometry>Unit Primitives>In New Mesh>Sphere to create a new item with a sphere in it.
4) Hold "Shift" and select the layers "Mesh" and "Sphere" from the item bin.
5) Right click either layer and select "export selected layers." Choose an FBX format from the dropdown.
6) Enable "separate files" and click "OK." Navigate to a directory and click "select folder."
Result: Modo will export the files.
7) Repeat steps 4-6, exporting to the same directory in step 6. When prompted to overwrite files, choose save.
Result: Modo will error.

Workaround
Export to a different directory in step 7.

Reproduced by support
This bug has been reproduced in:
12.1v1 - OSX 10.13.5
12.0v1 - OSX 10.13.5
11.2v3 - OSX 10.13.5
11.2v1 - OSX 10.13.5
11.1v1 - OSX 10.13.5
11.0v3 - OSX 10.13.5
11.0v1 - OSX 10.13.5
10.2v4 - OSX 10.13.5

Unable to reproduce bug in:
12.1v1 - Windows 10, Centos 7.4
10.2v4 - Windows 10, Centos 7.4

Earliest version tested
10.2v4 - OSX 10.13.5 - This issue appears to be in all OSX versions of the product

Expected behaviour
The files should be exported.

Actual behaviour
The files are not exported, resulting in an error message.
 

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