Description:
When writing a block of text and wanting to punctuate it with a pair of hyphens, writer will correctly replace the first interest hyphen [entered as a minus sign] to a hyphen, but will ignore the second. Consider:-

This is, as you might imagine, rather annoying.
This is - as you might imagine - rather annoying. 

With Writer, the first hyphen in the second line of text above will be amended from a regular minus sign to a formal hyphen... but the second on [in the example the one between "imagine" and "rather", remains as a minus sign. 

Writer should be able to tell that this is grammatical punctuation and correct consistently... 

Steps to Reproduce:
1.Simply enter any sentence that uses a pair of hyphens as punctuation
2. If using the minus sign on the keyboard, note the auto-correct of the first instance and nothing happening with the second
3.Issue is 100% repeatable

Actual Results:
I observe the first hyphen being auto-corrected by Writer from a short, thicker dash [the minus sign] to a slightly elongated and thinner dash - a textual hyphen. 

Expected Results:
I would like to see both submitted values treated consistently, ideally with both being converted from the mathematical minus sign to the textual hyphen. 


Reproducible: Always


User Profile Reset: Yes

Additional Info:
I am not sure if the components involved are going to let me do this, but I'm going to try and copy and paste, in to this text box, the two character [correctly transformed and incorrectly left as-is], as auto-edited by Writer. 

The correctly converted character is "–"
The incorrectly ignored character is "-"

On my screen, the above examples are visibly different. I'm hoping you might know how to reverse engineer this text back to the relevant UTF-8 character... I don't know how!