Can't override multiple alerts with same name

[varac]

I'm trying to override two alerts with the same name (see https://awesome-prometheus-alerts.grep.to/rules#rule-blackbox-1-5 and https://awesome-prometheus-alerts.grep.to/rules#rule-blackbox-1-6).
I don't know how I would approach/deal with this anyhow, but I still wanted to report this issue, don't know if there could be a solution to it.

❯ cat bug-multiple-alerts-with-same-name.rules 
---
groups:
- name: multiple_alerts_with_same_name
  rules:

  - alert: BlackboxSslCertificateWillExpireSoon
    expr: 'probe_ssl_earliest_cert_expiry - time() < 86400 * 30'
    for: 0m
    labels:
      severity: warning
    annotations:
      summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance
        }})
      description: "SSL certificate expires in 30 days\n  VALUE = {{ $value }}\n \
        \ LABELS = {{ $labels }}"

  - alert: BlackboxSslCertificateWillExpireSoon
    expr: 'probe_ssl_earliest_cert_expiry - time() < 86400 * 3'
    for: 0m
    labels:
      severity: critical
    annotations:
      summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance
        }})
      description: "SSL certificate expires in 3 days\n  VALUE = {{ $value }}\n  LABELS\
        \ = {{ $labels }}"

  - alert: BlackboxSslCertificateWillExpireSoon_override
    override: ["BlackboxSslCertificateWillExpireSoon"]
    expr: 'probe_ssl_earliest_cert_expiry - time() < 86400 * 3'
    for: 5m
    labels:
      severity: critical
    annotations:
      summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance
        }})
      description: "SSL certificate expires in 3 days\n  VALUE = {{ $value }}\n  LABELS\
        \ = {{ $labels }}"

❯ prometheus-alert-overrider bug-multiple-alerts-with-same-name.rules
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
main.extractFilterExpressions({0xc0000f8380, 0x33})
	/home/varac/projects/monitoring/prometheus/alerts/prometheus-alert-overrider/main.go:119 +0x68
main.NegateFilterExpression({0xc0000f8380?, 0x517214?})
	/home/varac/projects/monitoring/prometheus/alerts/prometheus-alert-overrider/main.go:144 +0x25
main.AlertFile.Override({{0xc0000a0a80?, 0xc00004c670?, 0xc000093f70?}}, {{0xc0000b4120, 0x2d}, {0x0, 0x0}, {0xc0000f8380, 0x33}, {0xc0000c86b0, ...}, ...})
	/home/varac/projects/monitoring/prometheus/alerts/prometheus-alert-overrider/main.go:92 +0x2ae
main.main()
	/home/varac/projects/monitoring/prometheus/alerts/prometheus-alert-overrider/main.go:224 +0x4a5