Marching ants only around first cell when copying merged cells.
Steps to reproduce:
1. Open a new spreadsheet.
2. Merge cells A1 and B1.
3. Select A1:B1 and copy it.
Only A1 is framed with the flickering line/marching ants.
Build ID: 4e527f55d74e3220873075a8ec2799e2206fdb2d
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3;
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time: 2019-08-31_02:35:57
Locale: de-AT (de_AT.UTF-8); UI-Language: en-US
Also reproducible in