Can't activate other plugins within the plugin activation handler

[dd32]

At present it's impossible to activate another plugin during a plugin activation handler.

The issue occurs because we fetch the option before running the activation handler, and then set it after the handler has run, so another activate_plugin() running in that handler is ignored (although the other plugins activation handlers will run).

Although it could be argued that plugins shouldn't activate other plugins, sometimes they're required or it's a better user experience to activate them at the same time.

[dd32]

In 32504:

Allow plugins to activate other plugins within their Activation hook. Fixes #32368