diff --git a/lib/spack/spack/solver/asp.py b/lib/spack/spack/solver/asp.py
index 8b3ce15331f..ebf340e172d 100644
--- a/lib/spack/spack/solver/asp.py
+++ b/lib/spack/spack/solver/asp.py
@@ -1999,10 +1999,10 @@ def define_ad_hoc_versions_from_specs(
             # best possible, so they're guaranteed to be used preferentially.
             version = s.versions.concrete
 
-            if version is None or any(
-                (v == version and not isinstance(version, vn.GitVersion))
+            if version is None or (not isinstance(version, vn.GitVersion) and any(
+                v == version
                 for v in self.possible_versions[s.name]
-            ):
+            )):
                 continue
 
             if require_checksum and not _is_checksummed_git_version(version):