FIX: do not parameterize tag_id (PR #9839)

Parameterizing tag_id was breaking tags with non-ascii characters.

Bug report: https://meta.discourse.org/t/unable-to-see-pm-lists-for-non-ascii-tag/151723/4

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https://meta.discourse.org/t/unable-to-see-pm-lists-for-non-ascii-tag/151723/4