$ git clone -n https://src.fedoraproject.org/rpms/qtkeychain.git /var/lib/mock/f40-build-1710855-24610/root/chroot_tmpdir/scmroot/qtkeychain
Cloning into '/var/lib/mock/f40-build-1710855-24610/root/chroot_tmpdir/scmroot/qtkeychain'...
$ git fetch origin 834ae6063f7f3d0563a72886efbb81d728b111a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qtkeychain
 * [new ref]         834ae6063f7f3d0563a72886efbb81d728b111a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 834ae60 Fix flatpak build