[jdk17u] RFR: 8275071: [macos] A11y cursor gets stuck when combobox is closed

[Alexander Zuev]

Backport of JDK-8275071, diff applied cleanly.

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Commit messages:
 - Backport 5d249c46abc8dfdc3acdaff41d26f3bd9ba84731

Changes: https://git.openjdk.java.net/jdk17u/pull/304/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=304&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8275071
  Stats: 18 lines in 1 file changed: 0 ins; 6 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/304.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/304/head:pull/304

PR: https://git.openjdk.java.net/jdk17u/pull/304