$ git clone -n https://src.fedoraproject.org/rpms/rust-owo-colors.git /var/lib/mock/f40-build-2250958-54098/root/chroot_tmpdir/scmroot/rust-owo-colors
Cloning into '/var/lib/mock/f40-build-2250958-54098/root/chroot_tmpdir/scmroot/rust-owo-colors'...
$ git fetch origin 7ab8baf5e9efdd2cca47abb108156afd8b89f066:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-owo-colors
 * [new ref]         7ab8baf5e9efdd2cca47abb108156afd8b89f066 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ab8baf Update to version 4.0.0; Fixes RHBZ#2255466