In WebKitProjectPaths.xcconfig, WK_WORKSPACE_DIR is computed by walking up the file hierarchy and looking for a "Source" or "Tools" directory to indicate the root directory of the repo. But it doesn't terminate when it finds a match.
<rdar://problem/128549939>
Committed 279224@main (d67f50b1bb68): <https://commits.webkit.org/279224@main> Reviewed commits have been landed. Closing PR #28926 and removing active labels.