Fix compat with older demos

[saul]

Closes #164

[github-actions]

BenchmarkDotNet v0.13.9+228a464e8be6c580ad9408e98f18813f6407fb5a, Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.102
  [Host]     : .NET 7.0.20 (7.0.2024.26716), X64 RyuJIT AVX2
  Job-FFJBRP : .NET 7.0.20 (7.0.2024.26716), X64 RyuJIT AVX2
  Job-ASJZAY : .NET 7.0.20 (7.0.2024.26716), X64 RyuJIT AVX2

InvocationCount=1  MaxIterationCount=16  UnrollFactor=1  
WarmupCount=1  

Method	Job	BuildConfiguration	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
ParseDemo	Job-FFJBRP	Baseline	2.604 s	0.0077 s	0.0068 s	1.00	0.00	33000.0000	1000.0000	-	604.95 MB	1.00
ParseDemo	Job-ASJZAY	Default	2.625 s	0.0063 s	0.0059 s	1.01	0.00	33000.0000	1000.0000	-	604.95 MB	1.00
ParseDemoParallel	Job-FFJBRP	Baseline	1.347 s	0.0200 s	0.0167 s	1.00	0.00	37000.0000	6000.0000	1000.0000	647.3 MB	1.00
ParseDemoParallel	Job-ASJZAY	Default	1.346 s	0.0283 s	0.0278 s	1.00	0.03	37000.0000	6000.0000	1000.0000	647.3 MB	1.00