Add #5800 to changelog

CHANGELOG.md

@@ -100,6 +100,7 @@
     Bug #5739: Saving and loading the save a second or two before hitting the ground doesn't count fall damage
     Bug #5758: Paralyzed actors behavior is inconsistent with vanilla
     Bug #5762: Movement solver is insufficiently robust
+    BUG #5800: Equipping a CE enchanted ring deselects an already equipped and selected enchanted ring from the spell menu
     Bug #5807: Video decoding crash on ARM
     Bug #5821: NPCs from mods getting removed if mod order was changed
     Bug #5835: OpenMW doesn't accept negative values for NPC's hello, alarm, fight, and flee