Attempt to get key with leading slash returns "not found" error from wrangler

[TifMoe]

🐛 Bug Report

Environment

• operating system: MacOS
• output of rustc -V: rustc 1.45.1 (c367798cf 2020-07-26)
• output of node -v: v12.10.0
• output of wrangler -V: 👷 ✨ wrangler 1.11.0
• contents of wrangler.toml

type = "webpack"
account_id = "<ACCOUNT-ID>"
zone_id = "<ZONE-ID>"

[env.<STAGING-ENV>]
name = "<STAGING-NAME>"
route = "<STAGING-ROUTE>/*"
kv-namespaces = [{binding = "CACHE", id = "<KV-NAMESPACE-ID>"]

Steps to reproduce

I was trying to get a value from our kv cache using Wrangler but my key has a leading slash:

1. Validate that I can see the key with a leading slash listed in my namespace

➜  wrangler kv:key list --binding="CACHE" --env=<STAGING-ENV> --prefix="/2050001"

2. Try to get the key with a leading slash

➜  wrangler kv:key get --binding="CACHE" --env=<STAGING-ENV> "/2050001/1000"       

What did you expect to see?

When I list my keys matching a prefix with a leading slash, I expected to see my key listed

➜  wrangler kv:key list --binding="CACHE" --env=<STAGING-ENV> --prefix="/2050001"
[{"name":"/2050001/1000","expiration":"2020-10-17T18:11:09Z"}]

When I try to get my key with a leading slash, I expected to see my value

➜  wrangler kv:key get --binding="CACHE" --env=<STAGING-ENV> "/2050001/1000" 
<MY-VALUE>    

What did you see instead?

I did see my key listed!

➜  wrangler kv:key list --binding="CACHE" --env=<STAGING-ENV> --prefix="/2050001"
[{"name":"/2050001/1000","expiration":"2020-10-17T18:11:09Z"}]

But when I tried to get it then I encountered a "not found" error

➜  wrangler kv:key get --binding="CACHE" --env=<STAGING-ENV> "/2050001/1000" 
⚠️  Code 10009: get: 'key not found'
🕵️  Run `wrangler kv:key list` to see your existing keys