Sub numbered bullets turn into letters when creating page from imported MS word doc

The import process translates sub numbered bullets into letters. Please see screen shots for examples of the document in word vs. Confluence.

steps to reproduce

1. Click 'tools' -> 'Import word document'
2. Choose a word doc that contains a numbered bullet list with subsections (aka, 1, 1.1 -1.2). An example copy is attached for testing.
3. Save the document
4. Notice that 1.1 has been changed to A.