My bad, sorry.

Arriving from the east, I probably got confused by the preceding sign, which notes "cycling routes blah blah turn right," but likely means the next turn, K Markétě: https://mapy.cz/zakladni?pid=105210093&newest=1&yaw=5.339&fov=0.760&pitch=0.144&x=14.6421064&y=50.0381496&q=u%20markety&z=17&ovl=8