Then it is your editor that stored dgu.hr in your changeset. If you used something else (like you surveyed there), you have to write it into the changeset so others can check.

Also, "approximating" traffic signs isn't the greatest, if you do not understand their meaning in Croatian law (nether do I). Like today the streets are signed differently as some parking zones with extensive descriptions on the sign that I rather do not try to interpret :)