$ git clone -n https://src.fedoraproject.org/rpms/ksanecore.git /var/lib/mock/f42-flatpak-app-build-58985002-6569805/root/chroot_tmpdir/scmroot/ksanecore
Cloning into '/var/lib/mock/f42-flatpak-app-build-58985002-6569805/root/chroot_tmpdir/scmroot/ksanecore'...
$ git fetch origin b695e73a2d8c686b35d2580a040375815b783b7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ksanecore
 * [new ref]         b695e73a2d8c686b35d2580a040375815b783b7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b695e73 25.04.0