$ git clone -n https://src.fedoraproject.org/rpms/kmousetool.git /var/lib/mock/f40-build-2357467-60307/root/chroot_tmpdir/scmroot/kmousetool
Cloning into '/var/lib/mock/f40-build-2357467-60307/root/chroot_tmpdir/scmroot/kmousetool'...
$ git fetch origin e8cfa6228523c4b32697b600040d1db1fff778be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmousetool
 * [new ref]         e8cfa6228523c4b32697b600040d1db1fff778be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8cfa62 24.01.95