$ git clone -n https://src.fedoraproject.org/rpms/srain.git /var/lib/mock/f40-build-704313-12987/root/chroot_tmpdir/scmroot/srain
Cloning into '/var/lib/mock/f40-build-704313-12987/root/chroot_tmpdir/scmroot/srain'...
$ git fetch origin 889cc817b94256e225b2a310a4ee88aa41e6c9be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/srain
 * [new ref]         889cc817b94256e225b2a310a4ee88aa41e6c9be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 889cc81 chore: Update to 1.7.0