$ git clone -n https://src.fedoraproject.org/rpms/libheif.git /var/lib/mock/f40-build-769738-125758/root/chroot_tmpdir/scmroot/libheif
Cloning into '/var/lib/mock/f40-build-769738-125758/root/chroot_tmpdir/scmroot/libheif'...
$ git reset --hard 16632abe1f9a75d098297b4411905ec2eb9a46ef
HEAD is now at 16632ab Merge branch 'f38' into f39