Display filter parsing broken after upgrade from 3.0.7

This issue was migrated from bug 16336 in our old bug tracker.

Original bug information:

Reporter: Miles Raymond
Status: RESOLVED FIXED
Product: Wireshark
Component: Qt UI
OS: macOS 10.14
Platform: x86-64
Version: 3.2.0

Attachments:

: Display Filter Manager
dfilters: dfilters file requested

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