$ git clone -n https://src.fedoraproject.org/rpms/golang-github-joshuarubin-sway.git /var/lib/mock/f41-build-side-1-3089610-39246/root/chroot_tmpdir/scmroot/golang-github-joshuarubin-sway
Cloning into '/var/lib/mock/f41-build-side-1-3089610-39246/root/chroot_tmpdir/scmroot/golang-github-joshuarubin-sway'...
$ git fetch origin 93eb1bb3b3bc5de012a13d87fe1419897ed1d7c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-joshuarubin-sway
 * [new ref]         93eb1bb3b3bc5de012a13d87fe1419897ed1d7c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93eb1bb Initial package - Closes rhbz#2307801