Try fix for broken signature verification (#617)

* Try fix for broken signature verification

* add news

Author: jaimergp

conda_libmamba_solver/solver.py

@@ -636,12 +636,18 @@ def _package_info_to_package_record(
         else:
             url = pkg.package_url
         url = percent_decode(url)
+
+        # Signature verification requires channel information _with_ subdir data
+        channel = Channel(pkg.channel)
+        if not channel.subdir:
+            channel.platform = pkg.platform
+
         return PackageRecord(
             name=pkg.name,
             version=pkg.version,
             build=pkg.build_string,  # NOTE: Different attribute name
             build_number=pkg.build_number,
-            channel=pkg.channel,
+            channel=channel,
             url=url,
             subdir=pkg.platform,  # NOTE: Different attribute name
             fn=pkg.filename,  # NOTE: Different attribute name

news/617-signatures

@@ -0,0 +1,19 @@
+### Enhancements
+
+* <news item>
+
+### Bug fixes
+
+* Fix issue with content trust post-solve hooks that prevented signatures from being verified when the solved package records didn't include subdir information in their channel metadata. (#616 via #617)
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>