When typing an argument into autocomplete, it misses the full value

[sync-by-unito[bot]]

Repro instructions

• Go to px/namespace (namespace 'pl')
• Change 'pl' to 'default' quickly (and press enter right away)
• Note that due to the slow processing, only part of the word "default" is captured

┆Issue is synchronized with this Jira Bug by Unito