Description:
I have a graph with a few series.  I have single data labels set up intermittently on the lines (so I can quantify how the series change over time).

I reduced the symbol size as some of the lines were crossing and it made them hard to distingush.  I noticed that when I did Edit Series and changed the symbol size, the points associated with the Single Data Labels did not change.

Attached screenshot demonstrates this.  I reduced the size of the symbol on the dark blue but the data points with the single data labels did not change size.  I changed the symbol for the cyan series, but the points with the single data data labels did not change.

Steps to Reproduce:
1. create a graph
2. select a series and then a single data point and use Insert a Single data Label
3. Select the series again, and use Edit Series to change the symbol size or shape or something.
4. Note that the symbols for the data points with labels are unchanged

Actual Results:
data points that have single data labels are unchanged -- they did not take on the modified series values

Expected Results:
expect all data points in the series to take on the new format of the data points 


Reproducible: Always


User Profile Reset: No



Additional Info:
LibreOffice info:
Version: 6.2.5.2
Build ID: Gentoo official package
CPU threads: 8; OS: Linux 4.19; UI render: default; VCL: gtk3; 
Locale: en-US (C); UI-Language: en-US
Calc: threaded