$ git clone -n https://src.fedoraproject.org/rpms/kmousetool.git /var/lib/mock/f39-build-1627937-39410/root/chroot_tmpdir/scmroot/kmousetool
Cloning into '/var/lib/mock/f39-build-1627937-39410/root/chroot_tmpdir/scmroot/kmousetool'...
$ git fetch origin 4c9e9c90dd82ae0b244b6c02ea456cd3811e928f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmousetool
 * [new ref]         4c9e9c90dd82ae0b244b6c02ea456cd3811e928f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c9e9c9 23.08.2