René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Histograms disappear with logarithmic y-axis","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\nSetting a logarithmic y-axis with `ax.set_yscale('log')` causes histograms to disappear from the axis. This occurs in [2.1.0](https://github.com/matplotlib/matplotlib/releases/tag/v2.1.0) but not in 2.0.2.\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug, also minimizing the number of dependencies required--\u003e\r\n\r\n```python\r\nimport matplotlib\r\nmatplotlib.use('Agg')\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\n\r\nxs = np.random.normal(size=int(1e6))\r\nfig, (ax1, ax2) = plt.subplots(1, 2)\r\nax1.hist(xs, range=(-5, 5), bins=100)\r\nax2.hist(xs, range=(-5, 5), bins=100)\r\nax2.set_ylim(ymin=1)\r\nax2.set_yscale('log')\r\nfig.savefig('histogram.png')\r\n```\r\n\r\n**Actual outcome**\r\n\r\nWith **2.1.0**:\r\n\r\n![2.1.0](https://user-images.githubusercontent.com/540853/31249955-9632ab66-aa19-11e7-8aab-c6a7ccac306f.png)\r\n\r\n**Expected outcome**\r\n\r\nI expect to see a logarithm y-axis _and_ the histogram, but I only see the former. With **2.0.2** I see this:\r\n\r\n![2.0.2](https://user-images.githubusercontent.com/540853/31249924-795ab998-aa19-11e7-8c3f-f205ea54e817.png)","author":{"url":"https://github.com/alexpearce","@type":"Person","name":"alexpearce"},"datePublished":"2017-10-05T20:08:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/9288/matplotlib/issues/9288"}