Before, the `updateItem` method was called with the new value that was committed via `commitEdit()`. This is problematic as developers may setup a commit handler via `setOnEditCommit`, which may reject the edit (or change the value otherwise). We therefore do call the `updateItem(-1)` which will also call `updateItem` but with the real underlying value.
Changed and added tests for all 4 cells. ------------- Commit messages: - JDK-8187314: All Cells: must show backing data always Changes: https://git.openjdk.org/jfx/pull/1197/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1197&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8187314 Stats: 110 lines in 8 files changed: 94 ins; 2 del; 14 mod Patch: https://git.openjdk.org/jfx/pull/1197.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1197/head:pull/1197 PR: https://git.openjdk.org/jfx/pull/1197
