$ git clone -n https://src.fedoraproject.org/rpms/rust-palette.git /var/lib/mock/f39-build-2342017-59800/root/chroot_tmpdir/scmroot/rust-palette
Cloning into '/var/lib/mock/f39-build-2342017-59800/root/chroot_tmpdir/scmroot/rust-palette'...
$ git fetch origin 2285498b0fadb178515fae128f4517165c76b7cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-palette
 * [new ref]         2285498b0fadb178515fae128f4517165c76b7cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2285498 Update to version 0.7.4; Fixes RHBZ#2260748