Increasing the 5' clipping penalty drops alignments with no 5' clipping

[nh13]

I am confused as to why after increasing the 5' clipping penalty, I do not see an alignment with no 5' clipping promoted to be the primary, and in fact, it disappears.

$ cat tmp.fasta
>read
AGCTCACATCCTGTATGCCCTCCCTCCATGCCAAGCAACTTTGGGGAGGATCTTCGTGGCTGTCTTGGTAGCAGCTTTTTAGGTGATCTCAGGGCTGTCTGGAGGCTTCTTTTGGTTTAGCTGCGACTACTGCGAGTACGTGGTATTGGAC

$ bwa mem -Y hs38DH.fa tmp.fasta | grep ^read
read	16	chr1	26317934	60	27S78M46S	*	0	0	GTCCAATACCACGTACTCGCAGTAGTCGCAGCTAAACCAAAAGAAGCCTCCAGACAGCCCTGAGATCACCTAAAAAGCTGCTACCAAGACAGCCACGAAGATCCTCCCCAAAGTTGCTTGGCATGGAGGGAGGGCATACAGGATGTGAGCT	*	NM:i:0	MD:Z:78	AS:i:78	XS:i:0	SA:Z:chr1,26318103,-,103S48M,60,0;
read	2064	chr1	26318103	60	103S48M	*	0	0	GTCCAATACCACGTACTCGCAGTAGTCGCAGCTAAACCAAAAGAAGCCTCCAGACAGCCCTGAGATCACCTAAAAAGCTGCTACCAAGACAGCCACGAAGATCCTCCCCAAAGTTGCTTGGCATGGAGGGAGGGCATACAGGATGTGAGCT	*	NM:i:0	MD:Z:48	AS:i:48	XS:i:21	SA:Z:chr1,26317934,-,27S78M46S,60,0;

$ bwa mem -L1000,5 -Y hs38DH.fa tmp.fasta | grep ^read
read	16	chr1	26317934	51	27S85M33I3M3D3M	*	0	0	GTCCAATACCACGTACTCGCAGTAGTCGCAGCTAAACCAAAAGAAGCCTCCAGACAGCCCTGAGATCACCTAAAAAGCTGCTACCAAGACAGCCACGAAGATCCTCCCCAAAGTTGCTTGGCATGGAGGGAGGGCATACAGGATGTGAGCT	*	NM:i:38	MD:Z:78A2A6^AGC3	AS:i:78	XS:i:48

So the 5' clipping is turned up to 1000, so I would expect that we get the 103S48M alignment since it has no 5' soft-clipping (sequencing order), but instead we get a strange 27S85M33I3M3D3M alignment.
The latter says it has score 78, which makes no sense:

85M = 85
33I = -6 + (-1 * 33) = -39
3M = 3
3D = -6 + (-1 * 3) = -9
3M = 3
so
85 + (-39) + 3 + (-9) + 3 = 43

unless you look back on the original alignment 27S78M46S where the soft-clips are not penalized (78M score).