chore: 1.0.0-alpha.46 changelog

Author: ulivz

CHANGELOG.md

@@ -1,3 +1,9 @@
+### Bug Fixes
+
+* **$core:** regression of introducing dynamic `routerBase` (close: [#1498](https://github.com/vuejs/vuepress/issues/1498)) ([5e12b49](https://github.com/vuejs/vuepress/commit/5e12b49))
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 <a name="1.0.0-alpha.45"></a>
 # [1.0.0-alpha.45](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.44...v1.0.0-alpha.45) (2019-03-31)