Your comments

You have not understood my suggestion correctly.

I meant by using a word "merging" a different case - I would like to see merged lines from a specific commit.

If you take a look at my image it would be great to see "TIPSYS-55370 (Číselník - zgrupování některých událostí) ... udalost WILL_BE_PENALTY_PARTICIPANT (-204) => groupovani" as 1 line (this a multiline commit message shown on the right side).