I recently encountered an issue with gentoo-kernel-bin (+initramfs); dracut started breaking when building initramfs on tmpfs. So, I added gentoo-kernel-bin to my package.env file to have it use a filesystem directory. This is when I discovered that only during a full emerge (emerge -1 gentoo-kernel-bin:6.1.13) was it building in my new TMPDIR; but it was building in the wrong dir when merely reconfiguring (emerge --config gentoo-kernel-bin:6.1.13). Steps to reproduce: Reproducible: Always Steps to Reproduce: 1. Configure a PORTAGE_TMPDIR variable inside /etc/portage/env/test; e.g. echo PORTAGE_TMPDIR=/var/tmp/testdir >> /etc/portage/env/test. Ensure the directory is writable by portage. 2. Configure a package to use that environment, e.g. gentoo-kernel-bin: echo sys-kernel/gentoo-kernel-bin test >> /etc/portage/package.env 3. run emerge gentoo-kernel-bin. Observe that it properly uses the newly-configured PORTAGE_TMPDIR when building the initramfs. 4. Reconfigure the package with emerge --config gentoo-kernel-bin. Observe that it uses the default PORTAGE_TMPDIR, ignoring the configured package.env. Actual Results: The emerge --config gentoo-kernel-bin used default environment. Expected Results: The emerge --config gentoo-kernel-bin should've used the configured override environment.
