$ git clone -n https://src.fedoraproject.org/rpms/blogilo.git /var/lib/mock/f40-build-757912-119563/root/chroot_tmpdir/scmroot/blogilo
Cloning into '/var/lib/mock/f40-build-757912-119563/root/chroot_tmpdir/scmroot/blogilo'...
$ git fetch origin bc79ccef647dfeec25ddcc0c720192a98fb2315f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blogilo
 * [new ref]         bc79ccef647dfeec25ddcc0c720192a98fb2315f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc79cce Add explicit BuildRequires: cmake(KF5TextEmoticonsWidgets).