When creating a new time entry via /time_entries/new (that is, outside the scope of a project), the issue autocompleter always searches across all projects of the user, even if a project has already been selected in the dropdown above. Selecting an issue of another project here will lead to a validation error and should therefore prevented by only offering issues of the selected project.

The attached patch developed at "Planio":https://plan.io/redmine-hosting solves this by providing the autocompleter with a function (instead of the static URL), which dynamically constructs the scope and project_id parameters according to the user's project selection.