Behavior of "Replace" and "Delete" buttons on blob page is inconsistent with "Edit" button

The "Replace" and "Delete" buttons should show the same behavior that the "Edit" button does as of https://gitlab.com/gitlab-org/gitlab-ce/issues/28899 / https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10233, showing a modal to ask the user to Fork instead of forking automatically.

Since the feature reduces internal consistency between buttons that are directly adjacent, I think this is a regression.

/cc @MadLittleMods

mentioned in issue #28899 (closed)

changed milestone to %9.1

mentioned in commit 2a0ff55d

assigned to @MadLittleMods

mentioned in merge request !10602 (merged)

mentioned in commit dbd1ae37

mentioned in commit ae455195

mentioned in commit 4865c442

mentioned in commit bc58db60

mentioned in commit d571093b

mentioned in commit 1e00c347

mentioned in commit d94885a4

mentioned in commit 73982bea

mentioned in commit 70a4e469

mentioned in commit 0bebd8ee

mentioned in commit 3e55bb7c

mentioned in commit 36387ce1

closed via merge request !10602 (merged)

mentioned in commit 0385b5b3

mentioned in issue #31276 (closed)

mentioned in merge request !14785