Description:
This bug report pertains to Version: 6.1.4.2
Build-ID: 9d0f32d1f0b509096fd65e0d4bec26ddd1938fd3
CPU-Threads: 4; BS: Linux 4.4; UI-Render: Standard; VCL: gtk2; 
Gebietsschema: de-DE (de_DE.UTF-8); Calc: group threaded and probably to many others.

I was surprised that a headline in a document was split from its associated content in an existing document despite the check-mark 'Keep with next paragraph' was set for it. (The headline was immediately followed by a table). This definitely is an error in version: 6.1.4.2 which could be circumvented by simultaneously setting the features 'Do not split paragraph' and 'Keep with next paragraph'.

Initially 'Do not split paragraph' was greyed out.

I found out that it becomes accessible after both orphan control and widow control are switched off (work around). 

In version 6.1.4.2 the check-marks for orphan and for widow control can sometimes (but not always) be checked (i.e. with hook) or half checked (i.e. blue, but no hook) or unchecked (i.e. white).

Prevent splitting all-together and widow/orphan control are somewhat contradictory, therefore this feature seems to have been touched in the daily build version 6.3.0.0.alpha0+
Build ID: aa31976c2e4399a86bc6f70f140972d9ccef6fc0
CPU threads: 4; OS: Linux 4.4; UI render: default; VCL: gtk3; 
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time: 2019-02-12_16:47:45
Locale: de-DE (de_DE.UTF-8); UI-Language: en-US
Calc: threaded 

In this daily build version, checking 'Do not split paragraph' in some instances simultaneously removed the check-marks for orphan/widow control (which makes sense). But another error has slipped in in that version: I can not influence the orphan/widow control parameters any more in it, even if 'Do not split paragraph' is not checked. The check marks become blue with a minus sign and I can't access the number of lines for  widows and for orphans.

Later I found that in other cases, clicking on 'Do not split paragraph' does not always operate on widow and orphan control, sometimes the behaviour looks like in version 6.1.4.2.

Steps to Reproduce:
1. create at least two paragraphs which are to be kept together and with two lines widow control and two lines orphan control.

2. try to change the first one to 'Do not split paragraph'.

3. remove the check marks for orphan and for widow control.

4. check 'Do not split paragraph' 

5. remove 'Do not split paragraph' 

Actual Results:
2. 'Do not split paragraph' is greyed out.
3. they are removed and 'Do not split paragraph' becomes accessible.
4. the check mark is set. Orphan and widow control become greyed out.
5. Orphan and widow control become accessible without check marks set for them.

Expected Results:
2. It should be accessible, simultaneously removing the check marks for orphan and for widow control.
5. Accessibility is ok. I would have expected that widow and orphan control were re-established as they were before.


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
There might be a glitch in the daily build version: trying this on some other paragraphs, the behaviour looked similar to the one found in version 6.1.4.2, i.e. 'Do not split paragraph' inaccessible as long as either orphan control or widow control is set and no simultaneous treatment of both of them happens then.

But I am sure to have seen the half checked version just with blue buttons without check-marks. I'll try to attach screenshots as comments later.

Carefully looking at screenshots taken with the simultaneous action on the daily build  6.3.0.0.alpha0+, I found out that orphan control and widow control with them had '0 lines' parameters. Possibly this has some influence on that behaviour.