$ git clone -n https://src.fedoraproject.org/rpms/yakuake.git /var/lib/mock/f42-build-side-1-3514965-46092/root/chroot_tmpdir/scmroot/yakuake
Cloning into '/var/lib/mock/f42-build-side-1-3514965-46092/root/chroot_tmpdir/scmroot/yakuake'...
$ git fetch origin b6b74179cb6037d600acd0f6fa9505fc19fc87a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yakuake
 * [new ref]         b6b74179cb6037d600acd0f6fa9505fc19fc87a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6b7417 Rebuild (qt6)