3 files declare their use of WorkspaceAccessException

WorkspaceActivateForm.php in core/modules/workspaces/src/Form/WorkspaceActivateForm.php
WorkspacePublishForm.php in core/modules/workspaces/src/Form/WorkspacePublishForm.php
WorkspaceSwitcherForm.php in core/modules/workspaces/src/Form/WorkspaceSwitcherForm.php

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