KBD Mount: Command Prints Mountpoints Twice

[sanssecours]

Steps to Reproduce the Problem

Enter the following commands:

kdb mount config.ecf user/tests/dump dump
kdb mount config.yaml user/tests/yaml yamlcpp
kdb mount
#> config.ecf on user/tests/dump with name user/tests/dump
#> config.yaml on user/tests/yaml with name user/tests/yaml
kdb mount -1

.

Expected Result

The last command prints the following output:

user/tests/dump
user/tests/yaml

.

Actual Result

The command kdb mount -1 prints the following:

user/tests/dump
user/tests/dump
user/tests/yaml
user/tests/yaml

.

System Information

• Elektra Version: master
• macOS 10.14.3

[markus2330]

As written in #1844, we also need regression tests for the -0 (and -1) feature. Or we remove the feature.