Inconsistent registry data in asset pages

## Short description
It happens in a non-consistently reproducible way that the asset pages [like this one](https://blockstream.info/liquid/asset/b00b0ff0b11ebd47f7c6f57614c046dbbd204e84bf01178baf2be3713a206eb7) sometimes fail to fetch the data from the registry.
## Actual behavior
I've noticed such failure in different configurations:
- the stats table contains the correct registry data, but the transactions section doesn't (see attachment below), and viceversa
- neither the stats table nor the transaction section contain the registry data
## Expected behavior
- If an asset is registered on the Asset registry it's data should be consistently displayed on both the stats table and the transactions section
- in the worse case, if the above behavior can't be ensured avoid displaying inconsistent data between the stats table and the transactions section, rather fallback to no-registry-data
## Attachments
Examples:
- [Consistent Asset- 888cafe69e21fdcb24e18a6ece152fdfd771f98c8fff1b1292884d9e651b4f66.pdf](https://github.com/Blockstream/esplora/files/4266882/Consistent.Asset-.888cafe69e21fdcb24e18a6ece152fdfd771f98c8fff1b1292884d9e651b4f66.Liquid.Explorer.-.Blockstream.info.pdf)
- [Inconsistent Asset- 888cafe69e21fdcb24e18a6ece152fdfd771f98c8fff1b1292884d9e651b4f66.pdf](https://github.com/Blockstream/esplora/files/4266883/Inconsistent.Asset-.888cafe69e21fdcb24e18a6ece152fdfd771f98c8fff1b1292884d9e651b4f66.Liquid.Explorer.-.Blockstream.info.pdf)