Reduce unnecessary config locks in XSLT loader

1 job from master in 11 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
failed #303
docker alpine
build

00:00:11

 
Name Stage Failure
failed
build Build There is an unknown failure, please try again
  openssl-dev-1.0.2o-r1:
conflicts:
libressl-dev-2.7.4-r0[pc:libcrypto=1.0.2o]
libressl-dev-2.7.4-r0[pc:libssl=1.0.2o]
libressl-dev-2.7.4-r0[pc:openssl=1.0.2o]
satisfies: world[openssl-dev]
libssh2-dev-1.8.0-r3[pc:libcrypto]
libssh2-dev-1.8.0-r3[pc:libssl]
ERROR: Job failed: exit code 4