$ git clone -n https://src.fedoraproject.org/rpms/rust-sctk-adwaita.git /var/lib/mock/f40-build-2288211-55773/root/chroot_tmpdir/scmroot/rust-sctk-adwaita
Cloning into '/var/lib/mock/f40-build-2288211-55773/root/chroot_tmpdir/scmroot/rust-sctk-adwaita'...
$ git fetch origin 3c00d3a22e08e2a906c104063c7e65a053b5cdae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sctk-adwaita
 * [new ref]         3c00d3a22e08e2a906c104063c7e65a053b5cdae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c00d3a Update to 0.8.1 (rhbz#2232134)