$ git clone -n https://src.fedoraproject.org/rpms/rust-dotenvy.git /var/lib/mock/f40-build-781252-131566/root/chroot_tmpdir/scmroot/rust-dotenvy
Cloning into '/var/lib/mock/f40-build-781252-131566/root/chroot_tmpdir/scmroot/rust-dotenvy'...
$ git fetch origin 83973468a462d3522052ae79b69b62b5587a5f29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-dotenvy
 * [new ref]         83973468a462d3522052ae79b69b62b5587a5f29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8397346 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild