bootstrap-vue: String `:style` notation not working in `` (at least)

Describe the bug

In <b-col> components (at least), the :style attribute is limited to object notation. This might be the case with more Bootstrap Vue components but it should be considered a bug, since it’s a clear limitation from :style normal behavior on Vue components.

Steps to reproduce the bug

Please see this question and this answer.

Expected behavior

String :style properties passed to Bootstrap Vue components should apply correctly.

Versions

Libraries:

• BootstrapVue: 2.0.0-rc.22
• Bootstrap: 4.3.1
• Vue: 2.6.10

Environment:

• Device: [MacBook Pro]
• OS: [Windows 10]
• Browser: [Chrome]
• Version: [74.0.3729.169]

It should be expected this bug is Bootstrap Vue specific and would be encountered across any device + OS + browser combo.

Demo link

https://stackoverflow.com/questions/56401806/how-to-bind-custom-style-in-b-col-bootstrap-vue-element