Description:
If you set some reference where text uses non-breaking space, by inserting the reference this non-breaking space becomes lost.

Steps to Reproduce:
1. Write some text in Line 1 with non-breaking space
2. Set the text with non-breaking space as reference (Fields-Cross reference-Set reference).
3. Write some text in Line 2 and insert the reference (Fields-Cross reference-insert reference as Reference). insert the reference to the end of line where no enough space is presented to show the reference in this Line 2 (so it should split also into the Line 3).  

Actual Results:
Non-breaking space is not presented in reference , so e. g. you get some business name with spaces split.
See attached test file.

Expected Results:
Non-breaking space should be present in the reference. 


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
Version: 7.2.2.2 (x64) / LibreOffice Community
Build ID: 02b2acce88a210515b4a5bb2e46cbfb63fe97d56
CPU threads: 16; OS: Windows 10.0 Build 19042; UI render: Skia/Raster; VCL: win
Locale: sk-SK (sk_SK); UI: en-GB
Calc: CL