Doc: document that top-level actions are replaced by nested (job) actions (nor merged)

[pirat89]

In case like below:

actions:
  create-archive:
  - ....
  fix-spec-file:
  - ....
  post-upstream-clone:
  - ....

jobs:
- job: copr_build
  trigger: pull_request
  metadata:
    ....
  actions:
    create-archive:
    ....

The actiones under the jobs, replace completely action from the top-level (when the job is triggered). Currently, from the documentation it's not clear, whether in such a case only the create_archive action is replaced and the others (fix-spec-file, post-upstream-clone) are kept untouched, or whether the whole actions section is completely replaced. It's easy to discover the behaviour, but I think the documented behavriou will still save some time.

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[pirat89]

I think this is worthy to be solved

[lachmanfrantisek]

Moving this to the documentation repository where this needs to be fixed.

[stale]

This issue has been marked as stale because it hasn't seen any
activity for the last 60 days.

Stale issues are closed after 14 days, unless the label is removed
by a maintainer or someone comments on it.

This is done in order to ensure that open issues are still relevant.

Thank you for your contribution! 🦄 🚀 🤖

(Note: issues labeled with pinned or EPIC are
never marked as stale.)

[stale]

This issue has been marked as stale because it hasn't seen any
activity for the last 60 days.

Stale issues are closed after 14 days, unless the label is removed
by a maintainer or someone comments on it.

This is done in order to ensure that open issues are still relevant.

Thank you for your contribution! 🦄 🚀 🤖

(Note: issues labeled with pinned or EPIC are
never marked as stale.)