$ git clone -n https://src.fedoraproject.org/rpms/dolphin-plugins.git /var/lib/mock/f39-build-2075219-49429/root/chroot_tmpdir/scmroot/dolphin-plugins
Cloning into '/var/lib/mock/f39-build-2075219-49429/root/chroot_tmpdir/scmroot/dolphin-plugins'...
$ git fetch origin 2596b130f4d33c66a17d65ddd18f28274ef55052:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dolphin-plugins
 * [new ref]         2596b130f4d33c66a17d65ddd18f28274ef55052 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2596b13 23.08.4