Correctly handle nil assignee arguments
What does this MR do and why?
This MR adjusts some logic in our parameter normalisation in the GraphQL resolvers in !152127 (merged) and !151639 (merged)
Changelog: fixed
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
How to set up and validate locally
Both these queries should not error locally:
GraphQL queries:
query {
group(fullPath: "gitlab-org") {
flowMetrics {
issuesCompletedCount(
assigneeUsernames: null
from: "2022-01-01"
to: "2022-02-02"
) {
value
}
}
}
}
query {
project(fullPath: "gitlab-org/gitlab") {
issueStatusCounts(
assigneeUsernames: null
) {
all
closed
opened
}
}
}
Related to #432501 (closed)