You can walk over all fences, fence gates, and walls.
Steps to recreate (Fences & Walls):
Place any block.
Place any wall or fence behind block
Place another wall/ fence above the one you just placed.
Steps to recreate (Fence Gates):
Place block
Place Fence Gate facing the block
Place another Fence gate crossing the other one
Linked issues
Attachments
Comments 3
Elaboration on that:
You're first stepping into the extension of the lower fence/wall, raising you half a block (not a bug), then it's a normal 1 block jump to get on top if the second wall (also not a bug).
Thank you for your report!
We're tracking this issue in MC-1323, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki