Hello,
i run into something on a Gio@5 (v3.2.9) and tested it on Nomad (v3.2.10)
How i reproduced it in Nomad:
- go to Workspace 3
- open Tab[38]
- hit + and open Tab [99]
-revisit Tab[38]
-> see Tab[38] overflows
A Picture from Gio@5 : 
The overflow in Nomad was "lighter" as on the Gio@5 
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This can't be reproduced if you don't use the {+} Symbol to open a new Tab (in Nomad tested).