$ git clone -n https://src.fedoraproject.org/rpms/rust-palette.git /var/lib/mock/f40-build-2116120-50702/root/chroot_tmpdir/scmroot/rust-palette
Cloning into '/var/lib/mock/f40-build-2116120-50702/root/chroot_tmpdir/scmroot/rust-palette'...
$ git fetch origin 7bd1efdd4ca138b3a235ab4c6dcf71c5d8656bac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-palette
 * [new ref]         7bd1efdd4ca138b3a235ab4c6dcf71c5d8656bac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bd1efd Update to version 0.7.3; Fixes RHBZ#2107821