Affix bug

[Olvi73]

Issue Checklist

• I have executed hexo clean, cleared the browser cache and disabled all CDN services (e.g. Cloudflare Rocket Loader), this issue still exists.
• I have confirmed that this issue only appears in theme NexT, but cannot be reproduced in other themes (e.g. default theme landscape). In other words, prove that this is a NexT issue, not a issue from Hexo.
• I have already viewed Hexo Docs page, especially Templates, Variables, Helpers and Troubleshooting.
• I have already viewed NexT Documentation Site and searched for current issues which does not help me.

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Expected behavior

Actual behavior

• Links to demo site with this issue: https://olvi73.github.io/2019/09/28/Sublime%20Text%203%E6%BF%80%E6%B4%BB%E6%96%B9%E6%B3%95/
  https://olvi73.github.io/about/
• Links to repository or source code of the blog: https://github.com/Olvi73/Olvi73.github.io

Steps to reproduce the behavior

1. PC端打开issue里的网页
2. 鼠标拉到最下端会自动回弹回去（无法拉到最低）
3. 使用了tag cloud的功能，在很短文章中才会出现这种情况，在长文章中不会出现
   4.关闭tag cloud后，不管长文章或者短文章都不会出现

Hexo Information

Package dependencies Information

Hexo Version

hexo: 3.9.0
hexo-cli: 2.0.0
os: Windows_NT 10.0.18362 win32 x64
http_parser: 2.8.0
node: 10.16.3
v8: 6.8.275.32-node.54
uv: 1.28.0
zlib: 1.2.11
brotli: 1.0.7
ares: 1.15.0
modules: 64
nghttp2: 1.39.2
napi: 4
openssl: 1.1.1c
icu: 64.2
unicode: 12.1
cldr: 35.1
tz: 2019a

Other Information

关于tag cloud的设置
blog的_config.yml
#tag_cloud:
textFont: Trebuchet MS, Helvetica
textColor: '#333'
textHeight: 25
outlineColor: '#E2E1D1'
maxSpeed: 0.1

themes\next\layout_macro\sidebar.swing
{% if site.tags.length > 1 %}

<script type="text/javascript" charset="utf-8" src="/js/tagcloud.js"></script> <script type="text/javascript" charset="utf-8" src="/js/tagcanvas.js"></script>

Tag Cloud

{{ list_tags() }}

{% endif %}

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[stevenjoezhang]

是的，这是已知问题，已在Roadmap中提及。见 #809