$ git clone -n https://src.fedoraproject.org/rpms/kvirc.git /var/lib/mock/f40-build-1951099-25188/root/chroot_tmpdir/scmroot/kvirc
Cloning into '/var/lib/mock/f40-build-1951099-25188/root/chroot_tmpdir/scmroot/kvirc'...
$ git fetch origin f99f72826531b426452fc9a2ae33854c2f531a65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kvirc
 * [new ref]         f99f72826531b426452fc9a2ae33854c2f531a65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f99f728 Rebuild (qt6)