The previous form set `trap "rm -rf '$TMP_DIR'" RETURN` inside the test, but bats propagates `RETURN` traps to nested function calls, so the trap fired on the first `assert_success` and removed the work directory before the trigger script ran. Switching to bats's per-test `BATS_TEST_TMPDIR` removes the trap entirely and lets bats handle cleanup.
Both helpers wrap `run /bin/bash -c "..."` with the env vars dokku plugin scripts and `plugn` need, replacing the long inline boilerplate that was duplicated across `tests/unit/resource_3.bats` and the new `core-post-extract` regression tests in the builder bats files.
The builder-dockerfile, builder-lambda, builder-nixpacks, builder-pack and builder-railpack `core-post-extract` triggers assigned `$2` to a local `SOURCECODE_WORK_DIR` but called `pushd "$TMP_WORK_DIR"`, which was unset. Bash 5.2 silently accepted `pushd ""`, so the bug stayed dormant. Bash 5.3 (shipped with Ubuntu 26.04) makes it a hard error and `set -e` aborts the trigger, causing every `git push` to fail with `pushd: null directory`.
The argument-handling block in each plugin's report command overwrote APP with --global before checking whether $1 actually held an info flag, so `dokku <plugin>:report --global --<plugin>-foo` always emitted the full report instead of the requested value. Reorder the conditionals across the sixteen plugins that share the pattern so the info-flag check runs first, and add a regression bats case for each one.
