$ git clone -n https://src.fedoraproject.org/rpms/golang-mvdan-gofumpt.git /var/lib/mock/f40-build-2246377-53808/root/chroot_tmpdir/scmroot/golang-mvdan-gofumpt
Cloning into '/var/lib/mock/f40-build-2246377-53808/root/chroot_tmpdir/scmroot/golang-mvdan-gofumpt'...
$ git fetch origin 9f42586d801adc76a6d1d792ed68302decf14a76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-mvdan-gofumpt
 * [new ref]         9f42586d801adc76a6d1d792ed68302decf14a76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f42586 Update to 0.5.0 - Closes rhbz#2130893