René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"SymLogNorm colorbar incorrect on master","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\n\r\nThe colormap/tick locations within the colorbar are not being updated properly with a SymLogNorm on master. I think this is different than #16269 because it is actually creating the colorbar, just a wrong one.\r\n\r\nCompare the previous correct version:\r\nhttps://matplotlib.org/3.1.0/gallery/userdemo/colormap_normalizations_symlognorm.html\r\n\r\nwith a fresh checkout of master:\r\n\r\n![test](https://user-images.githubusercontent.com/12417828/72822693-c38abb80-3c2f-11ea-89f9-a101191d7bb3.png)\r\n\r\nDifference in the colorbar of the top axis.","author":{"url":"https://github.com/greglucas","@type":"Person","name":"greglucas"},"datePublished":"2020-01-21T16:29:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/16280/matplotlib/issues/16280"}